Meet a Bargibanti pygmy seahorse.

Meet a Bargibanti pygmy seahorse. They are very small, usually less than 2cm (0.79 in) and incredibly hard to spot in the wild thanks to their clever camouflage. They will spend their entire life on a single gorgonian coral. In August 1999, conservation biologist Sara Lourie and underwater photographer Denise Tackett were diving off the coast of Sulawesi in Indonesia, researching a tiny seahorse species called Hippocampus bargibanti, when they witnessed an epiphany: a male giving birth. Over the course of 15 minutes or so, 34 miniscule babies—each about two millimeters long—popped out of their father’s belly as Lourie and Tackett watched, mesmerized.