Shark is the famous one in sea the but they many others.
More Swahili Proverbs:
If you do not fill up a crack, you will have to build a wall.Swahili
He who devours his neighbour's fowl, its foot prints will give him away.
Swahili
He who fears the crying of a child, will cry himself.
Swahili
Hold him! Hold him! and you yourself after him.
Swahili
The timid crow withdraws his wings from harm.
Swahili
A handfull of water can not be grasped.
Swahili