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.
Cheddar News breaks down how China's population declined for the first time in 10 years.
Walgreens is no longer limiting the online sales of children's fever medicines after respiratory infections earlier send demand soaring.
Thousands in Spain lined up outside of their churches to have their pets blessed.
India is expected to become the world's most populous nation, according to the UN.
UFO sightings have jumped in the past two years, and half of them remain unexplained.
The deadline to sign up for the Affordable Care Act ends on Sunday.
Sweden has discovered what is believed to be Europe's biggest deposit of rare earth metals.
Woman checks out at a grocery store. Credit: Luis Alvarez via Getty Images
Vaccination rates have dropped again among U.S. kindergarteners.
The Pentagon has now received 510 reports of unidentified flying objects. Many of those reports, 366, were added to the total in just the last two years. The other 144 sightings were reported over a 17-year period.
