They lack gills, they give birth to live babies (not eggs).
Mammal.
Seals are mammals
Seals
Yes
Marine mammal.
Because they have fur.
yes
Some seals do.
Yes. They are because they produce milk to their young.
Yes, all seals are mammals as they give live birth and suckle their young.
"killer seal" is not a recognized species. **************************** Also, all seals suckle their young, so are mammals.
divergent, as both are fish but seals appear like a mammal and a penguin a bird.