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.
Doctors in Taiwan made a surprising discovery when a 64-year-old female patient complained of a clicking and rustling sound in her ear, which turned out to be a spider.
Many DNA tests on the market offer a glimpse into what makes your individual character, including who your ancestors are and some can even analyze your risk for developing certain diseases. Cheddar News spoke with Sam Beeler, chief strategy officer with Nebula Genomics; Eleanor Griffith, a certified genetic counselor; and Dr. Neil Iyengar, a medical oncologist with Memorial Sloan Kettering Cancer Center about the process involved in checking DNA and its effectiveness.
