NOUN
- any of several seals lacking external ear flaps and having a stiff hairlike coat with hind limbs reduced to swimming flippers
How To Use true seal In A Sentence
- For example, among true seals, the sexually dimorphic species, the northern elephant seal has distinct differences in diving behavior between the sexes.
- Others suggest that marine species were derived at least twice, with one lineage leading to the sea lions and the other to the true seals.