What about marine mammals and seabirds that don’t have gills?

Dolphins, seals, whales, sea lions, manatees – these aquatic creatures live in world of water, but their drinking habits are more in line with those of camels and other animals of the desert. Salty seawater is as toxic to marine mammals as it is to us. When they need a drink, marine mammals grab a bite to eat, sucking the moisture from fish, squid, and other aquatic entrees. Seabirds such as terns and albatrosses, meanwhile, have special glands near their eyes that absorb the salt from seawater and flush it out their beaks.


Picture Credit : Google