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.
Astronaut Scott Kelly saw the sun rise and set about 32 times each day during the 520 total days he spent in outer space. He also spent considerable time looking at Planet Earth. Naturally, it changed his perspective ー in the most literal sense. Kelly shares that new perspective through images in his latest book, "Infinite Wonder: An Astronaut's Photographs from a Year in Space."
Robin Koval, CEO and president of the Truth Initiative, believes that until government effectively regulates the sale of e-cigarettes, teenagers will continue to get addicted to nicotine. And that makes popular vape brands like JUUL no different from Big Tobacco, in her mind.
These are the headlines you Need 2 Know.
These are the headlines you Need 2 Know.
These are the headlines you Need 2 Know.
Elon Musk says the first part of his Boring Company's L.A. underground tunnel will open in December.
These are the headlines you Need 2 Know.
Jodie Emery, editor-in-chief of Cannabis Culture, said activists are celebrating Canada's legalization of cannabis but they aren't done fighting. The next battle in Canada will be granting amnesty to people convicted of non-violent marijuana charges, Emery said.
These are the headlines you Need 2 Know.
These are the headlines you Need 2 Know.
