Mammal: covered in hair, gives birth to live young, suckles said young.
Bird: got feathers
I never understood why there’s no single characteristic of other vertebrae. Something ain’t right.
Greg Cravens
August 05, 2017
September 12, 2017
September 19, 2017
September 30, 2017
Mammal: covered in hair, gives birth to live young, suckles said young.
Bird: got feathers
I never understood why there’s no single characteristic of other vertebrae. Something ain’t right.