Fish can drown in water if there is not enough oxygen.
The largest fish is the whale shark, which can grow over 40 feet long.
Some fish, like the clownfish, can change sex during their lifetime.
Electric eels can produce shocks of up to 600 volts.
Seahorses are the only fish species where the males give birth.
The fastest fish is the black marlin, capable of swimming at 82 mph.
