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This order includes all the frogs and toads , there are over 4000 species hopping all over the world! These amphibians have no tails. They are adapted for jumping: compared to their relatives the salamanders, they have lighter bones, and many of their bones are longer, or fused together. All frogs and toad adults are carnivorous, each has a tongue attached at the front of its mouth, instead of the back like most other animals. The tongue flips forward to capture a meal. Frog and toad larvae are called tadpoles. They often eat algae and other micro-organisms.


bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.


animals which must use heat acquired from the environment and behavioral adaptations to regulate body temperature


A large change in the shape or structure of an animal that happens as the animal grows. In insects, "incomplete metamorphosis" is when young animals are similar to adults and change gradually into the adult form, and "complete metamorphosis" is when there is a profound change between larval and adult forms. Butterflies have complete metamorphosis, grasshoppers have incomplete metamorphosis.


having the capacity to move from one place to another.

University of Michigan Museum of ZoologyNational Science Foundation

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. "Anura" (On-line), Animal Diversity Web. Accessed April 16, 2014 at

BioKIDS is sponsored in part by the Interagency Education Research Initiative. It is a partnership of the University of Michigan School of Education, University of Michigan Museum of Zoology, and the Detroit Public Schools. This material is based upon work supported by the National Science Foundation under Grant DRL-0628151.
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