Conversation so far:
where is the only inland lake inhabited by sharks located
Lake Nicaragua is the only freshwater lake containing oceanic animal life, including sharks, swordfish, and tarpon.
what type of habitat do sharks live in
Sharks can make a home in wide-open oceans, shallow waves, and sometimes, they even live in freshwater.
are sharks mammals
Although sharks give birth to their young ones like mammals, they are species of fish and not mammal.

Question: are the fish color blind
Self-contained rewrite: are sharks color blind