I'd rather not have astronomers working on decoding dolphin calls. You imply there's a shortage of biologists, and if we just suspend space exploration and divert those minds to marine biology, things will get better.
I don't follow. You could say the same thing about any Earth-bound phenomena. There is an endless supply of interesting things to study on our planet. There's also an endless supply of space exploration waiting for us. To pick one to the exclusion of the other seems very shortsighted, given that we don't know what we'll find in either place.
Seems like pursuing all avenues of exploration is the best way to move us forward.