Wednesday, January 7, 2015

#21) Big Idea 1 Term 39: Tetrapod

Above sleeps Pogona vitticeps, also known as a bearded dragon. He walks on four legs like all other tetrapods. Tetrapods are though to have evolved from the lobe-finned fish from about 395 million years ago in the Devonian Period. Tetrapods include any organism that walks on four legs.

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