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.
An elephant herd that made a yearlong journey into urbanized southwest China, raiding farms and even a retirement home for food, appears finally to be headed home.
Members of the U.S. military would be required to have the COVID-19 vaccine beginning Sept. 15, under a plan announced by the Pentagon on Monday and endorsed by President Joe Biden.
The space agency began taking applications Friday for four people to live in a simulated Mars habitat at the Johnson Space Center in Houston.
Thick smoke that held down winds and temperatures has begun to clear from Northern California's scenic forestlands as firefighters battle the largest single wildfire in state history.
Canada is lifting its prohibition on Americans crossing the border to shop, vacation or visit, but the United States is keeping similar restrictions in place for Canadians.
Earth is getting so hot that temperatures in about a decade will probably blow past a level of warming that world leaders have sought to prevent.
United Airlines will require U.S.-based employees to be vaccinated against COVID-19 by late October, and maybe sooner.
A wildfire raging in Northern California exploded in size overnight, becoming the third-largest wildfire in state history amid high temperatures and strong winds.
The U.S. men's track and field squad isn't looking so hot, Apple announces anti-child pornography measures on their iPhones, and the South Park boys get another big payday.
The White House will be requiring incoming travelers to the U.S. to be vaccinated., Gov. Cuomo is potentially looking at criminal charges, and Jeopardy! might be heading in a surprise direction for a new host.
