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You can find clues about how animals live by looking at their body parts. The shape and coloration of seahorses helps them hide in grasses and other plants. When animals look so much like their surroundings that they seem to blend in, we call this camouflage. Seahorses also have small, toothless mouths at the end of their long snouts. The structure of their mouth is a clue that they eat small animals, such as animal plankton. As they sit anchored to corals by their curling tail, seahorses will filter through their mouths plankton floating by in ocean currents. The seahorses' way of gathering food is called "filter-feeding." Try to figure out what other animals eat by studying their body parts in the What do I eat? activity.