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.
NASA said Thursday that the study of UFOs will require new scientific techniques, including advanced satellites as well as a shift in how unidentified flying objects are perceived.
An effort to destigmatize the use of overdose reversal drugs that started as a pilot in two West Virginia counties has expanded to all thirteen states in Appalachia this year.
States and Native American tribes will have greater authority to block energy projects such as natural gas pipelines that could pollute rivers and streams under a final rule issued Thursday by the Biden administration.
