This High Arctic rhino may change what we know about ancient animal migrations A 23-million-year-old rhinoceros fossil is reshaping scientists' understanding of mammal evolution. Aru Nair
Birds rating habitat A group in Western Washington state has developed a novel gauge for their forest conservation work — thousands of audio recordings of native birds. Patrick Jarenwattananon
Here are the Thanksgiving leftovers that are safe for pets to eat Before you share your Thanksgiving leftovers with your pet, here's what's safe -- and what's not -- to feed your cats and dogs. A Martínez
The origins of your dog's unique look may be older than you think A new study finds that about half of the physical variation seen in modern dogs existed during the Stone Age. Nathan Rott
How the turkey trotted its way onto our Thanksgiving tables — and into our lexicon Much of the turkey's early history is shrouded in uncertainty, historians and etymologists say — which is particularly true of how the bird got its name. Natalie Escobar
How a 'sweet and shy' tortoise outlived empires and survived two world wars No one knows exactly when Gramma was born. But if the estimated birth year of 1884 is accurate, Chester Arthur occupied the Oval Office and there were only 39 states at the time. Scott Neuman
How studying lions' roars with AI can help with conservation efforts Scientists have harnessed artificial intelligence to classify lion roars, a tool they say could help with lion conservation. Patrick Jarenwattananon
A bowhead whale's DNA offers clues to fight cancer Scientists searching for new ways to combat cancer think they may have uncovered a promising new lead in the DNA of the bowhead whale. Ari Daniel
How an ant colony can be tricked into betraying its queen For some would-be ant queens, the easiest way to take over a colony is to dupe its worker ants into committing regicide. Nell Greenfieldboyce
Eating just a handful of plastic can be fatal for marine animals, a study finds Scientists have long known that plastic waste is bad for marine animals. A new study quantifies how little ingested plastic it takes to be a lethal dose. Nathan Rott