Parasite / Host
Parasites and hosts are things that can hitch a ride on a sea mammal.
They don't hurt the mammal they actually are harmless and sometimes help them out by cleaning them. Like the picture above if you look at the fin of the shark there are tiny parasites on the back hitching a ride.
They don't hurt the mammal they actually are harmless and sometimes help them out by cleaning them. Like the picture above if you look at the fin of the shark there are tiny parasites on the back hitching a ride.