Interesting Contents Archive

Cuddle up to the naked mole rat (Heterocephalus glaber)! Native to eastern Africa, including Kenya and Ethiopia, these rodents inhabit underground burrows. They typically live in colonies of around 70 individuals—but they've been spotted in groups that near 300! To keep warm, these critters huddle together for body heat, often seeking out tunnels that lie close to the surface and are heated by the Sun. Did you know? Naked mole rats have the longest lifespans of all rodents, sometimes living for up to 30 years! Photo: John Brighenti, CC BY 2.0, flickr #nature #animals #amazinganimals #wildlifephotography

During the study, participants received a sleep headphone headband that would play the sound – the piano chord C69 – while they were sleeping, every 10 seconds during REM sleep.