Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Male pregnancy is a rare phenomenon in the animal kingdom, ...

In seahorses, it is the males who carry offspring to term. The females lay their eggs into a special brood pouch on the bellies of the males where they are fertilized by the male's sperm. In the brood ...

If there were to be a “best dad” award in the animal kingdom, seahorses would be a shoe-in. That’s because males, not females, of these peculiar fish carry their young to term. They fertilize and ...