Science Kangaroo species went extinct in the Pleistocene. Research hops in with a possible explanation. In a mass extinction event some 40,000 years ago, Australia lost 90% of its large species, including nearly two dozen kinds of kangaroos. Two theories suggest why. Ari Daniel
Animals Pet rescue organizations scramble to respond to destruction caused by LA wildfires The wildfires in Los Angeles County have left a trail of destruction — displacing entire families, including pets. Shelters and rescue organizations like Stray Cat Alliance are scrambling to respond. Hosts
Animals Seattle Humane is taking in pets from California. Here's how you can help Dozens of pets from California will be in need of homes here in Seattle next week. Katie Campbell Casey Martin
Science Survival of the luckiest? New study hints at the potential role of luck in evolution A new study on mice shows that luck in early life can determine success as an adult, especially when competition is high. Jonathan Lambert
Animals Meet Poppy, the baby pygmy hippo born in Virginia The United States now has its own pygmy hippo baby to compete with the cute viral hippo babies born in other countries recently. Brad Kutner
Animals Scientists have learned secrets of Australia's marsupial mole Researchers have probed the genetics of one of Australia's most elusive animals, the marsupial mole. Nell Greenfieldboyce
Science The National Zoo's giant pandas make the most of DC's snow The two giant pandas were seen on camera playing around in the snowfall that blanketed much of the Midwest and mid-Atlantic on Monday. Alana Wise
Animals The baby pygmy hippo born in Virginia now has a name: Poppy The United States now has its own baby pygmy hippo to compete with other cute viral hippo babies born in other countries recently. Brad Kutner
Science 32 dolphins have died since an oil spill near southern Russia, experts say A dolphin rescue center said most of the dead dolphins were from the endangered Azov species. The Associated Press
Animals Survival of the luckiest? New study hints at the potential role of luck in evolution A new study on mice shows that luck in early life can determine success as an adult, especially when competition is high. Jonathan Lambert