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.
British officials and space scientists said Tuesday they were disappointed but not deterred after the first attempt to launch satellites into orbit from the U.K. ended in failure.
The small coastal town of Montecito, California -- home to celebrities like Oprah Winfrey, Prince Harry and Meghan Markle and Rob Lowe -- has been evacuated as a result of extensive flooding in the area and surrounding canyons after more than eight inches of rain fell in just 12 hours on Monday.
Virgin Orbit's "Cosmic Girl," a retrofitted Boeing 747 plane, is scheduled for a horizontal launch into orbit Monday night from the United Kingdom's Spaceport Cornwall.
