RE: Difficulties in being a Marine Biologist.

Very deep thoughts! you mentioned something that is the base of my knowledge:

How different their world is and how they adapt and live comfortably.

That's triggered me a lot during my life! And nature always surprises and these interesting attributes we try to copy in our technology! I know a professor that has a project with Arctic Spiders, he got a grant from NASA because he is studying hibernation and how it maintains these spiders alive for years in hibernation thinking about space travels. lol just an example!