British marine biologist and photographer Richard Smith focuses his work on the ocean’s tiniest and weirdest creatures.

Pygmy seahorses, about the size of a fingernail, are some of the smallest vertebrates in the world. First discovered in 1969, little was known about the creatures. But in the early 2000s ...

Dwindling natural habitats are causing a significant decline in certain seahorse species. To bolster populations, researchers ...