Tagged Questions
4
votes
1answer
42 views
How do sharks and other fish conserve and gain water in marine environments?
With the osmolarity of the average vertebrate being around 300mOsml, and salt water having an osmolarity of 1000mOsml, why does the water from the shark not leave to the salt water around it?
I ...
9
votes
1answer
97 views
Why is there a difference in the rotation of the tail fin in fish compared to marine mammals?
I've been thinking about this one, but I can't seem to find what causes this difference.
All fishes that I've seen have their tail fin positioned vertical:
But all the marine mammals I know have ...
