As I was watching a few small tropical fish swim around in a friend’s 10-gallon tank, I suddenly wondered: do fish ever get thirsty?
If fish do get thirsty, do they try to swim to somewhere new and exciting for a bit of something fresh to drink?
I wondered about an enormous great white shark attacking from below as an unexpecting seal is about to become dinner. Does the shark say to itself, “I’ll open my mouth a bit early so I can wash this seal down more easily. That one I ate a few days ago really got caught in the throat,”?
How about whales, seals, dolphins, penguins and other animals that live in the sea, but breath oxygen? What do they drink?
Um. Fish breath oxygen.