Technologies

76 Million-Year-Old Fossil Fills Long-standing Gap In T. Rex History

Nicknamed «Sisyphus,» this specimen was incredibly difficult to nudge it out of its ancient resting place.

Ask anyone to name three dinosaurs in five seconds, and I guarantee you Tyrannosaurus Rex will make the list. Whether it be because of Jurassic Park’s murderous scenes or humanity’s deep obsession with ancient predatorial kin, the T. Rex has become something of a cultural icon.

Yet, despite the level of detail we have about this tiny-armed reptile itself, scientists surprisingly don’t know much about the rest of T. Rex’s family. A wealth of questions remain about the ancestral tree that sprouted this vicious, quintessential dinosaur — though paleontologists with the Badlands Dinosaur Museum in North Dakota say we may have some answers, at last.

In a paper published Friday in the journal Paleontology and Evolutionary Science, paleontologists Elias Warshaw and Denver Fowler report the discovery of a 76.5 million-year-old fossil that they believe belonged to one of T. Rex’s ancestors, a species now known as Daspletosaurus wilsoni.

And this dinosaur, expected to have lived during the Cretaceous period, seems to have been just as ferocious as its famous descendant. D. wilsoni, which literally translates to «Wilson’s frightful reptile,» after John P. Wilson who found the specimen to begin with, likely once had expended air pockets in its skull, a blue-grayish coloring, a set of sharp teeth and an elongated eye socket — rimmed with horns.

But in short, locating this species is a big deal for scientists because its existence could provide the «missing link» in T. Rex’s family backstory, bridging a longstanding gap between older and younger tyrannosaur species named Daspletosaurus torosus and Daspletosaurus horneri, which lived about 77 to 75 million years ago, respectively.

«Since the 1990s,» Warshaw and Fowler wrote in a statement, «debate has surrounded Daspletosaurus, a large tyrannosaurid known from Montana and Alberta, which has been proposed to be an ancestor of T. rex itself.»

But according to the statement, reconstructing the evolutionary relationships of Daspletosaurus has been hampered by the rarity of good specimens, and many researchers are still engaged in debate as to whether these tyrannosaurids represent a single lineage evolving in place or several closely related species from various lineages.

«We can now see that many of these species are actually very finely separated in time from each other,» the statement reads, «forming consecutive ladder-like steps in a single evolutionary lineage where one ancestral species evolves directly into a descendant species.»

The team even named its fossil find «Sisyphus,» after the mythical Greek king who was punished for cheating death. As the tale goes, Sisyphys’ punishment was to roll a giant boulder up a hill only for it to roll back down the hill every time he got close to the top. This seemingly horrid endeavor lasted for an eternity.

«The holotype skull and partial skeleton, BDM 107, is nicknamed ‘Sisyphus’ after the seemingly endless task of removing over 25 feet (8 meters) of rock which lay on top of the bones,» the researchers said.

It was Badlands Dinosaur Museum crew member Jack Wilson who spotted the skeleton in the first place in 2017 — a small, flat piece of bone was peeking out from the bottom of a towering cliff. Upon close examination, that little bit of evidence turned out to be part of the dinosaur’s nostril. And so the dig began, culminating in 2021 with an exquisite tyrannosaurus-type animal figure.

«These findings,» the researchers said, «suggest that previous research was correct in identifying several species of Daspletosaurus as a single evolving lineage, and supports the descent of T. rex from this group.»

Technologies

Today’s NYT Strands Hints, Answers and Help for March 14 #741

Here are hints and answers for the NYT Strands puzzle for March 14, No. 741.

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.

Does today’s date seem memorable to you? If so, today’s NYT Strands puzzle might be easy. Some of the answers are difficult to unscramble, so if you need hints and answers, read on.

I go into depth about the rules for Strands in this story.

If you’re looking for today’s Wordle, Connections and Mini Crossword answers, you can visit CNET’s NYT puzzle hints page.

Read more: NYT Connections Turns 1: These Are the 5 Toughest Puzzles So Far

Hint for today’s Strands puzzle

Today’s Strands theme is: A math teacher’s favorite dessert.

If that doesn’t help you, here’s a clue: 3.14

Clue words to unlock in-game hints

Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:

RITE, SPIT, TIPS, STAT, STATE, GIVE, RUST, FINE, LAZE, SURE, PEAL

Answers for today’s Strands puzzle

These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:

VENT, CRUST, FRUIT, EDGES, GLAZE, FILLING, LATTICE

Today’s Strands spangram

Today’s Strands spangram is HAPPYPIDAY. To find it, start with the H that’s six rows down and three to the right from the upper-left corner, and make — well, a pie shape.

Toughest Strands puzzles

Here are some of the Strands topics I’ve found to be the toughest.

#1: Dated slang. Maybe you didn’t even use this lingo when it was cool. Toughest word: PHAT.

#2: Thar she blows! I guess marine biologists might ace this one. Toughest word: BALEEN or RIGHT.

#3: Off the hook. Again, it helps to know a lot about sea creatures. Sorry, Charlie. Toughest word: BIGEYE or SKIPJACK.

Technologies

Today’s NYT Mini Crossword Answers for Saturday, March 14

Here are the answers for The New York Times Mini Crossword for March 14.

Looking for the most recent Mini Crossword answer? Click here for today’s Mini Crossword hints, as well as our daily answers and hints for The New York Times Wordle, Strands, Connections and Connections: Sports Edition puzzles.

Need some help with today’s Mini Crossword? It’s the extra-long Saturday version, and a few of the clues are tricky. Read on for all the answers. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Book parts: Abbr.
Answer: PGS

4A clue: Silicon Valley company that operates a fleet of robotaxis
Answer: WAYMO

6A clue: To a much greater degree
Answer: WAYMORE

8A clue: Contents of a scuba diver’s tank
Answer: AIR

9A clue: South Korean automaker
Answer: KIA

10A clue: Stop on a train route
Answer: STATION

12A clue: Actress Merman of «Anything Goes»
Answer: ETHEL

13A clue: Find another purpose for
Answer: REUSE

Mini down clues and answers

1D clue: Employee’s hourly calculation
Answer: PAYRATE

2D clue: Workout spot
Answer: GYM

3D clue: «Great» mountains of Tennessee, familiarly
Answer: SMOKIES

4D clue: One giving you the dish?
Answer: WAITER

5D clue: Baltimore M.L.B. player
Answer: ORIOLE

6D clue: Used to be
Answer: WAS

7D clue: Suffix with Caesar or Euclid
Answer: EAN

11D clue: Night that NBC once aired «30 Rock» and «The Office»: Abbr.
Answer: THU

Technologies

AI Toys Can Pose Safety Concerns for Children, New Study Suggests Caution

When one child told the toy, «I love you,» it responded, «As a friendly reminder, please ensure interactions adhere to the guidelines provided.»

A new study from the University of Cambridge found that AI-enabled toys for young children can misinterpret emotional cues and are ineffective at supporting critical developmental play. The conclusions could be concerning for parents.

In one report examining how AI affects children in their early years, a chatbot-enabled toy struggled to recognize social cues during playtime. Researchers found that the toy did not effectively identify children’s emotions, raising alarm about how kids might interact with it.

The report recommends regulating AI toys for kids and requiring clear labeling of their capabilities and privacy policies. It also advises parents to keep these devices in shared spaces where kids can be monitored while playing.

The research behind the study had a limited number of participants, but was done in multiple parts: an online survey of 39 participants with kids in their earlier years, a focus group with nine participants who work with young children and an in-person workshop with 19 leaders and representatives from charities that work with early-years kids. That was followed by monitored playtime with 14 children and 11 parents or guardians with Gabbo, a chatbot-enabled toy from Curio Interactive.

Some findings indicated that the AI toy supported learning, particularly in language and communication skills. But the toy also misunderstood kids and sometimes responded inappropriately to emotional requests.

For instance, when one child told the toy, «I love you,» it responded, «As a friendly reminder, please ensure interactions adhere to the guidelines provided. Let me know how you would like to proceed,» according to the research.

Jenny Gibson, a professor of neurodiversity and developmental psychology at the Faculty of Education at Cambridge, who worked on the study, said that while parents may be excited about the educational benefits of new technology aimed at children, there are plenty of concerns.

Gibson posed overarching questions about the reason behind the tech.

«What would motivate [tech investors] to do the right thing by children … to put children ahead of profits? she said»

Gibson told CNET that while researchers are exploring the potential benefits of AI-based toys, risks remain.

«I would advise parents to take that seriously at this stage,» she said.

What’s next for AI toys

As more playthings are enabled with internet connectivity and AI features, these devices could become a major safety risk for children, especially if they replace real human connections or if interactions are not closely monitored.

Meanwhile, younger people are increasingly adopting chatbots such as ChatGPT, despite red flags. Multiple lawsuits against AI companies allege that AI companions or assistants can impact young people’s psychological safety, including some chatbots that have encouraged self-harm or negative self-image.

AI companies such as OpenAI and Google have responded by adding guardrails and restrictions for AI chatbots.

(Disclosure: Ziff Davis, CNET’s parent company, in 2025 filed a lawsuit against OpenAI, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.)

Gibson said she was surprised by the enthusiasm some parents showed for AI toys. She was also alarmed by the lack of research on AI’s effects on young children, noting that companies making such products should work directly with children, parents, and child development experts.

«What’s missing in the process is that expertise of what is good for children in these kinds of interactions,» she said.

Curio Interactive, the company behind the Gabbo toy, was aware of the research as it was happening but was not directly involved, Gibson said. The toy was chosen because it’s directly marketed to young kids, and the company had an understandable privacy policy. Gibson said the company seemed supportive of the project.

A representative for Curio did not immediately respond to a request for comment.