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.
Pfizer says a booster dose of its COVID-19 vaccine appears to offer important protection against the new omicron variant.
A Japanese billionaire and his producer rocketed to space on Wednesday and reached the International Space Station several hours later.
Hawaii Flooding, Beijing Boycott & Disrupting Death
With rising numbers of COVID-19 cases predicted this winter, President Joe Biden is appealing for Americans to get their boosters and get behind his plan to tackle the new omicron variant through wider availability of vaccines and shots.
The U.S. identified its first known case of the omicron variant Wednesday — in a vaccinated traveler returning to California from South Africa — as scientists around the world raced to establish whether the new, mutant version of the coronavirus is more dangerous than the previous ones.
A person in California has become the first in the U.S. to have an identified case of the omicron variant of COVID-19.
The Supreme Court’s conservative majority is signaling it will uphold Mississippi’s 15-week ban on abortion — and may go much further to overturn the nationwide right to abortion that has existed for nearly 50 years.
The world is confronting a new coronavirus variant, and officials have named it “omicron." A World Health Organization panel has classified it as a highly transmissible virus of concern.
Australia’s Great Barrier Reef is spawning in an explosion of color as the World Heritage-listed natural wonder recovers from life-threatening coral bleaching episodes.
Climate change that may have contributed to a lobster boom in Maine could soon lead to a bust. Chloe Aiello reports.
