Even the warm and cold blooded can be friends!
Hummingbirds can fit between the two. When they sleep, they go into torpor—lowering their metabolism, heart rate and body temperature. That’s one cool trick.
February 08, 2017
sarahbowl1 Premium Member 10 days ago
Even the warm and cold blooded can be friends!
ellisaana Premium Member 8 days ago
Hummingbirds can fit between the two. When they sleep, they go into torpor—lowering their metabolism, heart rate and body temperature. That’s one cool trick.