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 4 months ago
Even the warm and cold blooded can be friends!
ellisaana Premium Member 4 months 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.