Manatee

Manatees and Their Six Senses

Most of the life of a manatee is spent in very murky water and they are also active throughout the night in the dark. For this reason, manatees do not need to have perfect vision and are reported to be practically near sighted, however they have receptors for both blue and green wave lengths allowing them to see in color and can therefore differentiate between random objects and luscious green plants to eat.