nihilisticglee wrote:

Doddsino wrote: It's actually called a "Mesonychia" and it's largely responsible for hooved or aquatic mammals. Sharks aren't mammals, they are fish. Dolphins, which did evolve from the Mesonychiad, have the shame general shape as Sharks, which is what I think Lesh was saying. Anyways, I think that more likely than not there is life in space we don't know about, but I am not ultra excited about finding it.

I'm quite aware that sharks are fish.

Like I said before, sharks and dolphins live in the same sort of habitat and evolved to better suit their survival.

And also like I said before, for an alien race to adapt the exact same way that we do would be highly unlikely. Not impossible, but just not likely.