To make them more streamlined for faster swimming.
Blubber is fat. THeir bodies will make it, just like our bodies, if they get enough to eat.
They were seals.
So they can swim faster (;
Seals evolved these features to become more hydrodynamic.
by the fat on the bodies and food and water
Seals like to play with toy balls.
It is known as a "Bangalore Torpedo" .
So seals eating can where other seals
well animals like fish, turtles, frogs, salamanders, newts, crabs, otters, seals, whales, Dolphins ECT.
Seals have a thick layer of fat around their bodies, plus oily, waterproof fur to help insulate them.
Whales and Seals have a layer of fat under their skins which act as an insulator/prevent heat loss from their bodies
sweet for seals to like