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.
Most scientists agree that the impact of an asteroid hitting Earth played a major role in the extinction of dinosaurs but now there's a brand new theory about how exactly that happened.
October is Breast Cancer Awareness Month. Over 240,000 cases of breast cancer are diagnosed each year but today's treatments give patients a better chance at beating the disease and living a healthy life. Cheddar News spoke with Dr. Mehran Habibi, director of breast surgery with Staten Island University Hospital; Dr. Holly Marshall, division chief of breast imaging at University Hospitals Cleveland; and Dr. Neil Iyengar, breast medical oncologist with Memorial Sloan Kettering Cancer Center about the progress made in treatments.
