Mammal

Glass of milk
Standing in between extinction in the cold
And explosive radiating growthSo the warm blood flows
Through the large four-chambered heart
Maintaining the very high metabolism rate they haveMammal, mammal, their names are called
They raise a paw, the bat, the cat
Dolphin and dog, koala bear and hogOne of us might lose his hair
But you're reminded that it once was there
From the embryonic whale to the monkey with no tailSo the warm blood flows with the red blood cells lacking nuclei
Through the large four-chambered heart
Maintaining the very high metabolism rate they haveMammal, mammal their names are called
They raise a paw, the bat, the cat
Dolphin and dog, koala bear and hogPlacental the sister of her brother Marsupial
Their cousin called Monotreme
Dead uncle AllotheriaMammal, mammal, their names are called
They raise a paw the bat, the cat
Dolphin and dog, koala bear and hog
The fox, the ox, giraffe and shrew, echidna, caribou