Mothers got a big evolutionary head-start: for eons all individuals were moms, all offspring daughters. Fortunately, sex was invented, can I get a hallelujah? And fathers were brought into the picture in a big way. Below are fathers from around the world and throughout the animal kingdom.
Seahorses are a type of fish in which the males actually get “pregnant.” The female seahorse deposits her eggs in the male’s specialized pouch, and the male carries up to 2,000 babies during its 10- to 25-day pregnancy. Image Nat’l Geo