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.
The U.N. weather agency says greenhouse gas concentrations hit a new record high last year and increased at a faster rate than the annual average for the last decade.
Moderna says its low-dose COVID-19 vaccine is safe and appears to work in 6- to 11-year-olds.
U.S. health officials say a salmonella outbreak tied to onions has sickened more than 650 people in 37 states.
Scientists have temporarily attached a pig’s kidney to a human body and watched it begin to work.
The NFL and lawyers for thousands of retired NFL players have reached an agreement to end race-based adjustments in dementia testing in the $1 billion settlement of concussion claims.
U.S. regulators are extending COVID-19 boosters to Americans who got the Moderna or Johnson & Johnson vaccine.
Kids aged 5 to 11 will soon be able to get a COVID-19 shot at their pediatrician’s office, local pharmacy and potentially even their school.
Investigators believe a massive cargo ship dragging anchor in rough seas caught an underwater oil pipeline and pulled it across the seafloor.
A panel of U.S. health advisers has endorsed booster doses of Johnson & Johnson’s single-shot COVID-19 vaccine.
A panel of U.S. health advisers has endorsed booster shots for Moderna's COVID-19 vaccine.
