Animals
- 			 Animals AnimalsReindeer can sleep while they chewBrain waves and behaviors suggest that reindeer can doze while chewing, a timesaving strategy for sleeping under tough conditions. 
- 			 Life LifeThe Endangered Species Act is turning 50. Has it succeeded?After 50 years, this landmark law has kept many species alive — but few wild populations have recovered enough to come off the “endangered” list. 
- 			 Animals Animals50 years ago, the U.S. Navy enlisted sea lions and other marine mammalsToday, dolphins and sea lions in the U.S. Navy Marine Mammal Program protect harbors and participate in research on animal health and well-being. 
- 			 Animals AnimalsThese are our favorite animal stories of 2023Spiders that make prey walk the plank, self-aware fish and a pouty T. rex are among the critters that enchanted the Science News staff. 
- 			 Animals AnimalsHere’s how spiders that go overboard use light to find landWhen elongate stilt spiders fall into water, they head for areas that don’t reflect light in the hope of finding dry land, experiments suggest. 
- 			 Animals AnimalsHere are 5 questions about the mystery dog illness making newsExperts suspect a perfect storm of conditions, rather than a new bug, is what’s driving “atypical kennel cough” cases in dogs across the United States. 
- 			 Animals AnimalsWhen do cats play fetch? When they feel like itMost cats that play fetch picked it up on their own, a study of cat owners suggests. The felines tend to dictate when a fetching session begins and ends. By Meghan Rosen
- 			 Animals AnimalsA new species of hedgehog stands out for its short spikesAt first, the eastern forest hedgehog was mistaken for its cousin. Dental and DNA analyses eventually confirmed the critter is a species new to science. 
- 			 Animals AnimalsWhy do some lizards and snakes have horns?These reptiles’ horns can be an asset or a liability. A new study looks at the evolutionary roots of this wild headgear. By Jake Buehler
- 			 Animals AnimalsFish beware: Bottlenosed dolphins may be able to pick up your heartbeatFish, sharks and platypuses are adept at sensing electrical signals living things give off. Bottlenosed dolphins make that list too, studies suggests. 
- 			 Animals AnimalsThese nesting penguins nod off over 10,000 times a day, for seconds at a timeMicronaps net chinstrap penguins over 11 hours of sleep a day, offering some rest while staying vigilant against predators and competitors. By Jake Buehler
- 			 Animals AnimalsThis bird hasn’t been seen in 38 years. Its song may help track it downUsing bioacoustics, South American scientists are eavesdropping on a forest in hopes of hearing the song of the long-missing purple-winged ground dove.