Seahorses live in warm, shallow waters around sea grass, mangroves, and coral reefs. The males have pouches where the females lay and fertilize up to 2,000 eggs. The eggs develop in the male's pouch for 2-6 weeks before the baby seahorses emerge. Seahorses have bony plates, a prehensile tail to wrap around seaweed or objects, and fins to move and steer. They come in various colors and patterns and are poor swimmers, living only 1-5 years. Seahorses are threatened by overcollection for Chinese medicine and souvenirs, though some places now protect them.