How Birds-To-Be Get Oxygen Inside Eggs
Unlike humans, bird embryos don't have an oxygen pipeline from their mothers. They develop inside eggs in a nest. Skunk Bear's latest video explains why these pre-hatchlings don't suffocate.
Read more on NPR
Blog Beauty 24/7
Research News
April 17, 2018 at 04:45PM
Không có nhận xét nào:
Đăng nhận xét