Adult amphibians are meat-eaters, and they prey on a variety of insects, worms, slugs, water snails and even small mice. As tadpoles, amphibians are herbivores that feed mostly on moss and other plants found on nearby rocks.
Once an amphibian reaches its adult stage, it relies only on a meat-based diet. This diet is based around what the amphibian has in its environment that is available to eat. Aquatic-based amphibians feed on small snails, fish and many insects. Both aquatic- and land-based amphibians feed on prey that is slow moving and defenseless.
Amphibians often hunt at night. Amphibians combine an acute combination of senses to locate food sources; they are recognized for their keen senses of sight, smell and hearing.
When the amphibian is in its larva stage, it is referred to as a tadpole. This cycle of growth exists only in an aquatic environment. During this phase the tadpole has sharp teeth that are used to rake food off of rocks. The tadpole locates and feeds on a rock that is covered in algae and plant-based material until it develops into a full adult amphibian. At this point, the diet switches from plant-based to meat-based.