The first vertebrates of which there is any fossil record are the fishes. In the story of evolution, the most important features they developed were lobed fins and lungs for breathing air.
for Schools
First shown on Wednesday
(to 11.25)
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The first vertebrates of which there is any fossil record are the fishes. In the story of evolution, the most important features they developed were lobed fins and lungs for breathing air.
for Schools
First shown on Wednesday
(to 11.25)
