Ever wonder how a dolphin sleeps while still swimming? Or how a giraffe sleeps while standing up? Cara Santa Maria, Narrator of Smithsonian Earth's "The Secret World of Animal Sleep" joins Cheddar to explore the wild world of sleeping animals.
Marine mammals only shut down half their brain while sleeping, leaving the other half of their body to stay afloat and be alert for prey. She explains how the higher up on the food chain you are, the more sleep you get. That's why prey species like giraffes can only afford mere minutes of sleep at a time, while lions revel in over 20 hours of luxurious slumber a day.
Arctic ground squirrels survive harsh Canadian winters through skilled hibernation. Entering a state of controlled hypothermia, their body temperatures drop to 27°F – the lowest ever recorded in a mammal.
Fans will be banned from the Tokyo area’s stadiums and arenas when the Olympic Games begin in two weeks.
The National Hurricane Center says Tropical Storm Elsa is strengthening and could became a hurricane before making landfall along Florida’s northern Gulf coast.
Elsa has strengthened into the first hurricane of the Atlantic season and it's blowing off roofs and snapping trees in the eastern Caribbean.
The Biden administration says it is hiring more federal firefighters — and immediately raising their pay — as officials ramp up response efforts in the face of a severe drought that's setting the stage for another destructive summer of intense wildfires across the West.
Electronic cigarette giant Juul Labs Inc. will pay $40 million to North Carolina and take more action to prevent underage use and sales.
Danish toymaker Lego has presented its first building bricks made from recycled drinks bottles — an experimental project that if successful could eventually go into production.
Human stampedes have been a chronically understudied topic and there's been an uptick in reported crushes as populations have increased.
The Tokyo Olympics are not looking like much fun: Not for athletes. Not for fans. And not for the Japanese public.
Australia says it will fight against plans to downgrade the Great Barrier Reef’s World Heritage status due to climate change, while environmentalists are applauding the U.N. World Heritage Committee’s proposal.
A sharply limited number of fans will be allowed to attend the Tokyo Olympics. The decision announced Monday comes as organizers try to save some of the spirit of the Games where even cheering has been banned.
