Mister_Prophet said:
There are. Forgot name, but these fish can breathe in water and leave the surface to crawl around on sort of fin-appendages for some time. However, I think they are classified as true amphibians and nearly every scientific study on them that I have read don't classifiy them or identify them as missing links or living missing links. Think of them as frogs without digits I guess. I forgot the reasons they gave but it isn't the same situation as with this new fish fossil they found.
That's the only one I've heard of.
You’re probably thinking of the lobe-finned lungfish. The lungfish is an example of a species that morphed its way between two mediums, land and sea. However, I’ve heard of another, similar, fish that is now believed to be the first fish to do this. I’ve forgotten the name.
The coelacanth is another lobe-finned fish. Both the lungfish and the coelacanth are alive today. I think the coelacanth had importance in other ways besides the lobed fins. They have a hollow spine. Coelacanth means hollow spine. I have a show taped somewhere where they talk about the significance of the spine, etc. I’ve forgotten much of what they talked about.
I believe people thought they’d see coelacanths using their fins to walk around on the bottom of the sea floor, but when you think about it, why do that when you can easily swim around. That would be like using a boat propeller to drive around on land.
But what I do remember that was significant was the coelacanth moves its fins in an opposing why as if to balance like animals do. Like when a person walks, they swing one leg forwards and at the same time, they swing their opposite arm backwards for balance.
