A cross between a shark and a whale???? Whales are mammals, and sharks are fish—no crossing is possible, so how could something “look” like something that is impossible?
It sounds like it was fish, so it has NO real resemblance to a mammal.
I disagree… see “Whale-Shark.”
Although no actual crossing has occured it is still possible to “look” like something else even though you haven’t really crossed with it. Just because is sounds like a fish, or even actually is a fish, doesn’t mean that it can’t resemble a mammal… as referenced before… see “Whale-Shark.”
Lots of things look like the impossible… see “Michael Jackson.”