1.   Kangaroos carry their young in a pouch.

2.   And in true marsupial fashion, this fearsome hunter had a pouch to carry its young.

3.   As scientists discovered many decades ago, the male sea horse is the one that becomes pregnant, carries the young in his belly and gives birth.

4.   I saw great crested grebes carrying their young on their backs as they swam.

5.   That way, more young carried away by currents would end up on other coral reefs and fewer would be lost to the open ocean.

6.   Among two primates, the owl monkey and titi monkey, fathers carry their young from shortly after birth, except for brief periods of nursing.