Technologies
2 Million-Year-Old DNA, the Oldest Ever Recovered, Opens Window to the Past
The prehistoric forest of northern Greenland was home to mastodons, reindeer, hares and an abundance of plant life.

As early as 2006, Eske Willerslev and members of his lab ventured into northern Greenland with a drill, extracting cores of sediment from the Kap København Formation. They were hunting for environmental DNA, or eDNA, in their cores — puzzle pieces that could help paint a picture of the plants and animals present in the region 2 million years ago.
But for the longest time, they came up empty-handed. «Every time we had improvements in terms of DNA extraction or sequencing technology, we’d revisit these samples,» Willerslev, an evolutionary geneticist at the University of Cambridge, said in a press briefing on Tuesday.
No matter what, the researchers failed to get what they were looking for. The run of bad luck saw members of the lab turn to the occult for an explanation; they named their troubles «the curse of the Kap København Formation.»
But with steady improvements in DNA extraction and sequencing technologies, the curse was finally broken.
On Wednesday, the team published the results of their 16-year pursuit of ancient DNA in the journal Nature. They were able to sequence eDNA from 41 sediment samples, collected in 2006, 2012 and 2016 from the Kap København Formation and undisturbed by humans for 2 million years. Their analyses revealed that a lush forest replete with reindeer, hares, mastodons and a wide variety of flora once stood in what is now a dull, gray polar desert.
Willerslev, a pioneering geneticist who has previously recovered eDNA from ice cores and shown it could survive in glaciers, noted that the «breakthrough» relied on expertise, advances in genetic sequencing techniques and bioinformatics.
History in the soil
DNA, which carries the instructions for life, is not a particularly sturdy molecule. The bonds that hold it together are weak and, over time, they break down.
This is why, even though we have an abundance of dinosaur fossils, we don’t have any dinosaur DNA. The beasts died out 66 million years ago, and the DNA would simply not survive that long.
When DNA degrades, the once-long strands of information break apart into smaller and smaller pieces. It becomes almost impossible to piece these fragments back together in the right configuration, especially if they are mixed in with a lot of other DNA from the environment.
Think of DNA like a book. Let’s say Alice in Wonderland. If you have the whole book, you can understand the story. But if you’re missing a few pages, you might not understand where the White Rabbit came from or why Alice ended up at a tea party with the Mad Hatter. If you’re missing lots of pages, you probably can’t even tell what the story was to begin with. Alice? Who’s that? And why is she 10 feet tall?
That’s the problem working with ancient DNA. You might be able to retrieve small fragments of DNA but it is generally too fragmented to be able to tell where it came from — and certainly too fragmented to understand where it came from.
But under certain circumstances, DNA fragments can survive deep time.
«The ‘survival time’ of DNA in the environment is incredibly variable and strongly dependent on the environment itself,» notes Michael Knapp, an ecologist and geneticist at Otago University in New Zealand.
Previously, the oldest DNA ever recovered came from mammoth fossils found in the Siberian permafrost. In a Nature paper in 2021, researchers showed that DNA from the mammoth teeth was, potentially, about 1.6 million years old. The DNA recovered was broken up into small fragments but they weren’t degraded so much they couldn’t be pieced back together. The cold temperature of the permafrost certainly helped with this.
It’s a similar story in the new study.
Willerslev and his collaborators postulate that the long survival time of the DNA in their sediment cores was possible for two reasons. The first is the constant cold temperature of the polar desert. The second is the way the DNA is bound to minerals in the cores, preventing degradation over longer time scales. The idea is that these mineral surfaces prevent enzymes from breaking down the DNA.
Karina Sand, a geochemist at the University of Copenhagen and co-author on the paper, explained that one of the technological leaps that enabled this feat was extracting DNA from clay and quartz minerals. The latter provided an abundance of DNA, but the former was harder to extract good DNA from. Fortunately, that leaves the door open for even older DNA extraction.
«If we can get better at extracting the DNA from the clay minerals, then we think we can go further back in time with DNA,» she said.
The research team was able to extract DNA from the sediment cores and begin to read the surviving fragments. These fragments were then compared to a database of genomes (complete DNA sequences) of modern plants and animals, looking for DNA matches. Over time, they were able to fill the blank pages of history, demonstrating the thriving ecosystem of ancient Greenland.
The ancient forest of Greenland
Two million years ago, Greenland was a different place.
«The Kap København ecosystem, which has no present-day equivalent, existed at considerably higher temperatures than we have today,» noted Mikkel Pederson, a geneticist at the Lundbeck Foundation GeoGenetics Centre, in a press release.
In northern Greenland, average temperatures during this time were likely more than 11 degrees Celsius (around 20 degrees Fahrenheit) higher than they are today. Previous studies at Kap København have shown evidence it was home to a boreal forest, but the eDNA extracted and analyzed in the new study provides a complete reimagining of the area, adding in megafauna and a wide variety of plant life.
The headline mammal DNA found in the cores is undoubtedly the mastodon — which is having a bit of a moment thanks to social media. Some of the eDNA found matched to the Elephantidae family, which includes elephants, mammoths and mastodons. It seems mastodons may have roamed Greenland 2 million years ago, though the researchers note the evidence isn’t extremely strong and is based on relatively weak DNA matches.
The team also found DNA related to reindeer, hares and rabbits, and the subfamily of animals that includes lemmings, voles and muskrats. Notably absent, however, is DNA from carnivores. The researchers suggest this is because of their comparably small biomass in relation to the herbivores. «It’s basically a numbers game,» Willerslev said.
One of the more intriguing DNA finds is of the Atlantic horseshoe crab. The species is no longer found at such northern latitudes, and the authors suggest this may mean Kap København experienced warmer sea surface temperatures 2 million years ago. Previous research has suggested the sea surface was warmer at higher latitudes, and the discovery of horseshoe crab DNA lends further support to this hypothesis.
Warmer temperatures are key. Multiple authors on the paper have reiterated the importance of understanding an ecosystem like this, given the effects of global warming. Two million years ago, the climate was changing and the eDNA shows that Arctic species were living with species that loved much warmer climes. This helps scientists to get an understanding of how nature was adapting to those changes and, within the DNA signatures, there may be clues to ways we could help modern-day fauna and flora survive extreme climatic swings.
One of the significant limitations of studying eDNA is that scientists have to postulate about the kinds of species that were living at the time. Knapp notes closely related ancient species might give you a DNA match but this is «somewhat inaccurate» — it provides an approximation of what existed. We may only be able to assign the DNA at a family or order level, so we can’t know exactly what roamed the boreal forest of Greenland 2 million years ago.
Even so, the recovery of DNA this old opens a new window to the prehistoric Earth, a pathway for scientists and researchers to probe the ecosystems that existed long before humans were around. The team will head to northern Canada to extract cores next year and hope to go even further back in time.
The extraction method may even lend itself to finding DNA in more humid climates across the world, like in Africa and Australia.
«If we can begin to explore ancient DNA in clay grains from Africa, we may be able to gather ground-breaking information about the origin of many different species —perhaps even new knowledge about the first humans and their ancestors,» Willerslev said in a statement.
«The possibilities are endless.»
Technologies
Zelle App Is Gone. Use These Alternatives to Send Money Digitally
You still have lots of free ways to send money to friends and family electronically.

If Zelle has been your go-to app for sending money digitally, it’s time to find a new method. The digital payment app shut down on April 1.
That doesn’t mean you can’t use Zelle altogether, however. Zelle has only discontinued its standalone app. You can still send money using Zelle if your bank belongs to the Zelle network. You’ll just need to do it through your bank’s app or website. You also have other services to choose from. Here’s what you need to know about this change and your options moving forward.
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Why the Zelle app is shutting down
When Zelle launched in 2017, only about 60 US financial institutions offered the service by the end of that year. Today, that number exceeds 2,200. As a result, less than 2% of Zelle transactions occur through the standalone app. Zelle has been phasing out the ability to make transactions on its mobile app since October 2024.
«Today, the vast majority of people using Zelle to send money use it through their financial institution’s mobile app or online banking experience, and we believe this is the best place for Zelle transactions to occur,» Zelle said in an October 2024 press release.
In December, Zelle was in the spotlight when the Consumer Financial Protected Bureau sued the company and three of the largest US banks for failing to protect consumers from widespread fraud on the peer-to-peer payment network. The lawsuit has since been dropped.
Other ways to send money digitally
You can still use Zelle through your bank’s app or website if it belongs to the Zelle network. You can also switch to another digital payment app, such as:
- Apple Wallet
- Cash App
- PayPal
- Venmo
Take some basic precautions when using Zelle or any other digital payment service. These apps are a frequent target for scammers, and Chase Bank has started blocking some Zelle payments it believes could be fraudulent. Only send money to people you know and trust, and watch for red flags like an urgent message claiming to be from your bank or an online ad for concert tickets that seem impossibly cheap.
Technologies
Marvel Rivals Season 2 Starts Next Week, Devs Drop Big News
Emma Frost and Ultron are joining the Rivals roster in season 2, and developers are upping the pace to one new hero per month starting with season 3.

After surviving the endless night in New York City with the Fantastic Four, Marvel Rivals players are getting invited to the shores of Krakoa for the start of season 2 on April 11. The game dropped the first trailer for the new season, giving us our first official look at the new heroes, and a developer vision video dropped major news about the future of hero releases.
The trailer features the former foe and sometimes-leader of the X-Men, Emma Frost, inviting people from across Rivals’ various timelines to the mutant nation of Krakoa, where everyone gets dressed up for a fancy gala — even Wolverine puts on a white tux. The event, however, is unceremoniously interrupted when Ultron shows up preaching extermination.
We also got a look at some of the cosmetics in season 2, though it’s unclear which are from the shop and which might be in the battle pass. In addition to the dressed-up Wolverine, we also got looks at Magik and Psylocke in the traditional X-Men blue and yellow. Nonmutant guests are also getting in on the fun, with fancy attire for heroes like Cap, Widow and Luna Snow.
New Heroes and balance changes in Marvel Rivals Season 2
Emma Frost joins the roster as a Vanguard. We don’t have detailed information about her abilities yet but expect that information to drop ahead of next week’s season launch. Ultron is coming in the season 2.5 update, which should be in late May.
Some team-ups are changing in season 2, including three new team-up abilities that were previewed in the newest developer vision video.
- Emma Frost allows Magneto and Psylocke to create illusions of themselves.
- Doctor Strange teams up with Scarlet Witch allowing her to use small portals to seemingly increase her damage output via a rapid-shooting alternate fire.
- Cap finally teams up with Bucky, allowing the Winter Soldier to leap to allies.
A few existing team-ups are getting adjustments, with Psylocke, Winter Soldier and Doctor Strange being removed from older team-ups in favor of new ones, and Namor moving from working with Luna’s anchor to Hulk’s to empower his ultimate with gamma energy. Two team-ups are being removed entirely: Magneto can no longer team up with Scarlet Witch, and Thor is no longer anchoring Cap and Storm.
The developers vaguely teased other balance changes, including buffs to Peni, Mister Fantastic and Moon Knight, with Strange trading offensive pressure for more survivability and Rocket getting more utility while Loki and Adam Warlock receive nerfs to their Regeneration Domain and Soul Bond abilities.
Future seasons will be shorter, which means more new heroes
One of the most surprising moments in the developer video was the announcement that, beginning with season 3, seasons will be two months long instead of roughly three. There has been a lot of discussion online about whether Rivals’ pace of new heroes (about eight per year based on three-month seasons) was sustainable. Well, apparently the Rivals devs took that personally and are cranking up that pace to a new hero every month, meaning 12 new heroes per year.
This feels borderline ludicrous compared with other hero shooters that average about three new heroes per year, or even MOBAs like League of Legends, which has averaged about four new champions per year over the past five years. Rivals benefits from having an overflowing stable of Marvel characters to pull from rather than inventing their own hero concepts, and compared with Overwatch, the developers seem less worried about mechanical overlap in their heroes, as seen with many support ultimates. Still, a new hero every month feels unheard of for a hero shooter.
New Krakoa map and competitive changes
A new Krakoa-themed domination map is being added in season 2, and Yggsgard: Royal Palace (domination) and Tokyo 2099: Shin-Shibuya (convergence) will rotate out of the map pool for ranked modes, though they’ll still be available in quick play and custom games.
The threshold for competitive picks and bans, which currently only happen in diamond-ranked lobbies, will be lowered to gold 3. Players in Eternity or One Above All ranks will only be able to duo queue, instead of queuing with larger groups — a measure that’s likely intended to keep high-level teams from stomping lobbies.
Speaking of ranks, season 2 will drop everyone by 9 divisions, which is equal to 3 ranks. That means players in Eternity will drop to diamond, and any players at platinum 3 or below will start their climb from bronze 3 again. (AGAIN… AGAIN.)
Rivals developers also announced that individual player performance will be weighted higher when determining competitive progress after a match, meaning if your stats outperform your team’s, you’ll earn more for winning and drop less for losing. This change can help elevate smurfs and other high-skill players in lower-ranked lobbies by getting them into their appropriate ranks faster. However, it can also lead to players stat-farming, instead of playing in a way that is most effective for winning games. Overall, given that Rivals doesn’t use any sort of competitive placement matches, this should be a net positive for the game.
Other announcements
Rivals is adding new skin recolors to certain hero skins and (finally) giving players the option to gift costumes to their friends so they can surprise someone for their birthday, which you definitely did not forget about.
Missions are changing a bit, with the addition of weekly missions and a redistribution of where battle-pass-progressing chrono tokens are earned. The devs framed this as creating a «smoother expectation» of how to earn chrono tokens, but the surface-level description sounds like they’re just making it harder to earn battle pass progress over the season by tucking away more progress under missions with shorter time limits.
The developer vision update also gave us our first look at the competitive distribution, showing how many Rivals players are in each tier as of season 1.5.
The Hellfire Gala trailer says season 2 will start on April 11. While it doesn’t give a specific start time, expect the between-seasons maintenance to finish sometime in the middle of the night in the US.
For more on Marvel Rivals, check out which heroes and roles you should play and how to get free skins.
Technologies
Nintendo Switch 2 vs. Switch 1: Every Detail Compared
The Nintendo Switch 2’s official specs aren’t too different, but the new console has a lot of upgrades on the original Switch.

The Nintendo Switch 2 may look like its predecessor, but there’s been a lot of changes to its features and under the hood. The new console has «10x the graphics performance» compared to the original Switch, says Nvidia, which built the custom processor powering the Switch 2.
The Switch 2, with a release date on June 5, is priced at $450 alone or $500 in a bundle with Mario Kart World, the headliner of the console’s launch games. Here’s all the info on how to preorder the Switch 2.
Note that we’re mostly comparing the Switch 2 to the original Switch 1 released in March 2017, because looping in the Switch Lite and Switch OLED gets complicated.
Design
Broadly, the Switch 2 is a larger version of its predecessor, with everything looking slightly inflated: bigger footprint, bigger screen, bigger Joy-Cons.
Original Switch: The original Switch, with Joy-Cons slotted into the side rails, is a little over 9.4 inches wide, 4 inches tall, a little over half an inch thick and weighs about 10.5 ounces (297 grams). The Joy-Cons slide into place from the top of the device’s sides, while a thin wedge of plastic pops out of the back of the console to serve as a kickstand.
The Switch also came with a dock, which the console could slot into to for recharging and outputting to a TV or large display via HDMI port.
Switch 2: The new Switch 2 is bigger in every way, but it has the same overall shape and layout as the original. The new Joy-Cons will indeed be held in place on the console magnetically, and connect to the console via pins. The new console also sports a wide U-shaped kickstand that spans almost its entire rear width, which can be moved around to prop up the Switch 2 at a variety of angles. Nintendo says the console has more powerful speakers, which we’re looking forward to testing.
The Switch 2’s dock is largely similar in function though it has rounded edges and an internal fan to cool down the console during long game sessions. More importantly, it can output games in 4K to TVs, but only for select games.
Joy-Cons
The Joy-Cons were a marvel when they arrived on the first Switch, and while they’re functionally similar in its successor, there have been upgrades in the Switch 2’s controllers.
Original Switch: The Switch Joy-Cons are simple but powerful controllers that slid on and off the console via plastic rails, connecting and recharging via pins on the side. Detach and they become their own micro-controllers, with little shoulder buttons to boot.
Switch 2: The new console’s Joy-Cons are larger to fit the Switch 2, and lock into the side of the console via powerful magnets — there are small inward-facing buttons to the side of ZR and ZL to detach the controllers from the console. The larger-size Joy-Cons have longer L and R outside shoulder buttons, as well as much wider SL and SR internal shoulder buttons, which are accessible when detached from the console.
And yes, you can use the Switch 2 Joy-Cons as mice by placing their inner edges flat on a surface. During the Nintendo Direct, we saw it being used to control active action games like the wheelchair basketball-simulating DragXDrive and strategy games like Civilization VII.
Display size
Original Switch: The original Switch has a 6.2-inch LCD screen with 1,280×720-pixel resolution, which was reasonably impressive at launch in 2017 but has been outclassed by newer handhelds with sharper displays. The Switch OLED upgraded this with a larger 7-inch display showing deeper blacks and colors, but no upgrade in resolution. The Switch Lite has a 5.5-inch LCD screen.
Switch 2: Unsurprisingly, the Switch 2’s larger size means a larger display. The new console has a 7.9-inch 1080p LCD screen that can get up to 120Hz refresh rate in handheld mode, or up to 4K when docked and outputting to a TV.
Why no OLED display? Possibly to save on costs… or possibly to give Nintendo room to release a Switch 2 OLED version down the line.
CPU/GPU
Original Switch: The original Switch runs on an Nvidia custom Tegra X1 processor split into four ARM Cortex A57 CPU cores, and according to Hackaday, there are four extra A53 cores that aren’t used.
Switch 2: Once again, Nintendo hasn’t released any official info on the Switch 2’s specs, even after the Nintendo Direct reveal stream — and they most the company reveals is that it has a «custom processor made by Nvidia» on the Switch 2’s official specs page. Nvidia confirmed it also has a custom GPU, claiming that the new console has «10x the graphics performance» of the Switch 1, and the custom processor’s AI-powered features include Deep Learning Super Sampling (DLSS), face tracking and background removal for video chat and real-time ray tracing.
We do still have more supposed details from previous leaks. Months ago on X (formerly Twitter), leaker Zuby_Tech posted that the Switch 2’s CPU will be an eight-core Arm Cortex A78C. They also suggested that the GPU will be an Nvidia T239 Ampere, aligning with years of similar rumors reported on by Eurogamer and others about the custom chip, which derives from Nvidia’s Tegra line of chips for smartphones and mobile devices.
RAM and storage
Original Switch. The Switch has 4GB of LPDDR4 RAM and 32GB of onboard storage, expandable up to 2TB via microSD cards in the slot beneath the kickstand.
Switch 2: Even after the reveal stream, Nintendo didn’t release official specs for RAM. Leaker Zuby_Tech posted on X back in September suggesting the Switch 2 will have 12GB of LPDDR5 RAM and 256GB of onboard storage. That leak also suggested the new console will have two internal fans, up from the single one in the original Switch.
Nintendo did confirm that the new console will have 256GB of onboard storage, which can be expanded with special microSD Express cards — sorry, your old Switch-compatible microSD cards won’t work on the Switch 2.
Battery life
Original Switch: The original Switch packs a 4,310-mAh battery, which gives between 4.5 and 9 hours of battery life depending on screen brightness and other factors.
Switch 2: Though Nintendo didn’t release details on the Switch 2’s capacity in the reveal stream, the company does list specs on its website, showing it packs a 5,220mAh battery. While that’s notably larger than the one in its predecessor, Nintendo estimates this will only get players between an estimated 2 and 6.5 hours, depending on games played.
Ports
Original Switch: The first Switch sports a single USB-C port out the bottom, a 3.5mm headphone jack on the top and Wi-Fi 5 plus Bluetooth 4.1 connectivity. On the top is a slot at the top for Switch game cartridges as well as the microSD slot beneath the kickstand on the rear of the console.
Switch 2: The Switch 2 retains the original’s USB-C port on the bottom and 3.5mm jack on the top while adding another USB-C port topside, and now we know what it’s for: to connect with accessories like the Nintendo Switch Camera, a webcam-like camera on a stand to let you do Nintendo’s version of FaceTiming while you play games with your friends.
Nintendo hasn’t clarified the console’s connectivity options, and rumors are scarce on the subject.
As for cartridges, Switch 2 will play some original Switch games in physical versions. The cartridge slot is to the right of the headphone jack in the above image, which is where the slot is on the original Switch. You can tell game cartridges from the two console generations apart by color: ones for the new Switch 2 are red, while older Switch 1 games are black.
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