Tree Frog  35-I
TETRAPODA
Four-Legged Animals
 
 
Tree Frog in the Peruvian rainforest



Chapter Outline
  1. Description of Tetrapoda
  2. Classification of Tetrapoda
  3. Gymnophiona
  4. Caudata
  5. Anura
  6. Paleo Tetrapoda

Tree
NCBI Tree | Paleo Tree



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Continuing deeper into the bony vertebrates, the remaining chapters contain those animals with four limbs. Even animals like whales and snakes, which seem to have two or no limbs, have ancestors with four limbs and they have simply lost their need for them.

This chapter focuses on the Amphibians. Amphibians can often live on land, unlike fishes, but they still depend on aquatic environments for reproduction.

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