Fish Evolution

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1:01ray type fins and those with more media appendages that were attached to their bodies by a single strong bone. At first, those so-called lobe finned fishes far outnumbered their ray finned relatives. But just as some of them were becoming adapted for life in the weedy shallows, global climate fluctuations caused a mass extinction, the devastated life in the oceans. After the catastrophe, the ray finned fishes recovered and took over the seas. The lobe fins never recovered, but a few survivors in the shallows managed to find their footing out of the water and eventually gave rise to every backbone, four-limbed creature to ever crawl, hop, fly, or walk on land.