they have external fertilization ,
PS i learned it in science :P zz
this is all wrong...it does NOT use exernal fertilization...external fertilazation is for fish and stuf,but internal is for humans and mamals.
polar bears are internal because they are mammals and all mammals are internal.
Polar bears mate and carry out a pregnancy. A mother will usually give birth to two cubs at a time.
Is a salmon internal or external?
Polar bears have endoskeletons.
polar bears are related to bears.
Polar bears do.
They reproduce.
POLAR BEARS Polar bears actually grow pretty fast.
Blubber is an external layer of fat found beneath the skin of certain animals, primarily marine mammals like whales, seals, and polar bears. It serves as insulation to help regulate body temperature in cold environments, as well as providing energy reserves and buoyancy.
Polar bears are mammals.
humans are polar bears
Polar bears are bears