Technologies
Scientists map 17,000-year-old woolly mammoth’s path using its tusk
One ancient male mammoth was quite the vagabond.
We might think of woolly mammoths as giant, lumbering beasts from a disappeared era, but a new study suggests their massive size didn’t stop them from tallying major miles in the frigid north thousands of years ago.
«It’s not clear cut if it was a seasonal migrator, but it coveredsome serious ground,» explains University of Alaska Fairbanks researcherMatthew Wooller, in a statement. «It visitedmany parts of Alaska at some point during its lifetime, which is prettyamazing when you think about how big that area is.»
Wooller led a team using chemical isotope data to map the life journey of a single mammoth that lived over 17,000 years ago. A paper on the findings is the cover story in this week’s issue of the journal Science.
The group of international researchers analyzed isotopic signatures in the male mammoth’s tusk from the elements strontium and oxygen, then cross-referenced that data with maps of isotope variation across Alaska created from analyzing the teeth of small rodents from around the state.
«From the moment they’re born until the day they die, they’ve got adiary and it’s written in their tusks,» said Pat Druckenmiller, apaleontologist and director of the University of Alaska Museum of the North. «MotherNature doesn’t usually offer up such convenient and life-long records ofan individual’s life.»
The ancient dental records show the big old boy lived to be 28 years old and in that time it covered enough of the Alaskan tundra, taiga and mountains to nearly circle the world twice.
This woolly one didn’t exactly have an easy journey, though. The analysis showed an abrupt shift around age 15 that likely means the mammoth was ostracized from its herd, which often happens with contemporary elephants. Later, a spike in nitrogen isotopes during the last winter of the animal’s life suggest it may have starved to death where its remains were eventually recovered above the Brooks Range.
That fate was a sad harbinger for the entire species. The individual mammoth was related to the last group that roamed mainland Alaska, likely outlasted by only a few small groups on northern islands.
The research also has a darkly relevant feel today for extant species in the north like polar bear that are seeing their traditional range dwindle as the Arctic takes on the brunt of global warming.
«The Arctic is seeing a lot of changes now, and we can use the pastto see how the future may play out for species today and in the future,»Wooller said. «Trying to solve this detective story is an example ofhow our planet and ecosystems react in the face of environmentalchange.»
Technologies
Repair Your Electronics at Home With This Rare Black Friday Discount on the iFixit Pro Tech Go Toolkit
This toolkit rarely goes on sale, so take advantage of this opportunity to snag it for only $40.
While Black Friday is an excellent time to replace old smartphones or broken laptops at a discount, not everyone is looking to splurge on new tech right now. If you’re shopping on a budget, or simply like the devices that you have and aren’t ready for an upgrade, investing in an electronics repair kit may be a wise option. We’ve spotted a discount on the iFixit Pro Tech Go tech toolkit, bringing its price down to just $40. But don’t delay, Black Friday is in its final hours and this kit rarely goes on sale.
The iFixit Pro Tech Go kit can be used to open up and repair a wide range of electronics, including smartphones, laptops, gaming consoles, and smart home devices for DIY repairs like battery or screen replacements. The kit has a 32-bit Moray driver kit, an opening tool, a suction handle, a jimmy, a spudger and angled tweezer to carefully open your devices.
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Repairing your own tech can save you hundreds or even thousands of dollars. It also reduces e-waste by helping your devices last longer rather than throwing them away over minor issue. As of this year, all 50 states have introduced right-to-repair legislation designed to give people a legal right to fix their own tech, and several states have already signed it into law.
You can check out more deals from iFixIt now on Amazon. Plus, for other budget buys, check out our roundup of the best Black Friday deals under $100.
MOBILE DEALS OF THE WEEK
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Why this deal matters
This is a record low price on a repair kit that rarely goes on sale. While we did see a modest discount on the iFixit Pro Tech Go toolkit during Amazon Prime Day in July, it was not marked down for October Prime Day or other sales such as Memorial Day or Labor Day. As such, it’s fairly unlikely that we’ll see it go on sale again this season, so this might be your last chance to get the toolkit for only $40.
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Technologies
Don’t Say Goodbye to Black Friday Yet. These Rare Apple Discounts Are Still Going Strong
Technologies
What a Ban Would Actually Mean for DJI Drone Owners and Holiday Shoppers
What’s the secret to a very un-merry shopping season? A brand new, unusable drone.
With Thanksgiving wrapped up and the Black Friday shopping sales here, if a DJI drone is on your holiday wish list, you might want to hit «buy» immediately. The company has issued a stark warning: Its drones could be banned from sale in the US, and the deadline is looming.
The Federal Communications Commission voted 3-0 at the end of October to «close loopholes» that allow tech deemed a «national security risk» to be sold in the US. In plain English, the US government is clearing the path to give DJI the same treatment it gave Chinese phone-maker Huawei, effectively banning its products from the American market.
The US government has deemed DJI, which is based in China, a security risk. It’s also considering a separate ban on TP-Link routers.
DJI is already sounding the alarm, posting on Instagram that a «deadline that could decide DJI’s fate in the US is just 43 days away» (now 19 days away). The company is warning that without an audit, its products could face an «automatic ban.» The US government has long labeled the Chinese drone maker a security risk, and it looks like the hammer might finally be coming down right before the holidays.
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The vote isn’t the end of the road, however. Future bans would need to target specific products and would require a period of public consultation. But it appears the groundwork is being set for the FCC to block sales of future and some existing DJI drones from US shores, as well as products that use DJI technology.
The government has called for a DJI audit by the end of the year, but if that doesn’t happen, DJI drone products could be banned for sale by default under a national security law.
DJI asks for a security audit before any ban
A representative for DJI told CNET that while the FCC vote references a rule change that doesn’t currently apply to DJI specifically, the National Defense Authorization Act deadline in December would put Chinese companies like it on the FCC’s ban list, «without any evidence of wrongdoing or the right to appeal.»
Adam Welsh, head of global policy at DJI, said the company has repeatedly said it would be open to audit, but that «more than 10 months have now passed with no sign that the process has begun.»
«The US government has every right to strengthen national security measures, but this must go hand in hand with due process, fairness, and transparency,» Welsh said.
Welsh said DJI is urging the government to start the audit process or grant an extension.
Will DJI drone owners need to give them up?
Because the ban would apply to new sales, not drones that have already been sold, a DJI drone you already own would still be legal to use — at least under current rules.
Government agencies, however, are prohibited from purchasing or using drones from Chinese companies, including DJI.
DJI’s drones consistently rank high in their product category. In January, they dominated CNET’s list of best drones for 2025. But some of the company’s newest products, such as the DJI Mavic 4 Pro, haven’t been available for sale in the United States.
Even DJI products that are not yet banned may be hard to find. The website UAV Coach has posted a guide to the bans and reports that, due to inventory issues, most DJI drone models are sold out at retailers regardless of future FCC action.
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