The Seahorse! These strange little creatures are in fact fish with exoskeletons, and if there's one thing I've learnt this month, it's that I love an exoskeleton. They pair for life, are the only animal in the world where the males get pregnant, and baby seahorse eat up to 3000 things a day. Hello christmas Tom. The eating, not the pregnancy, although the aesthetic is now the same. The Latin name for them is Hippocampus, which means Horse Caterpillar. Shame they don't turn into Aqua Butterflies.