Make babies inside the body
internally
internally
Dolphins reproduce internally and give live birth.
Aye ayes reproduce internally like any other lemur.
All foxes are mammals and reproduce internally.
Externally.
internal
As a mammal, a deer would be reproduced internally.
There are a great number of characteristics that animals posses that can help them reproduce. The ability to fertilize internally is one of them.
Horses are mammals and reproduce internally, and the female gives birth after a gestation period of about 335 to 340 days.
External, like most fish.
reproductive organs. some are designed to reproduce outside of the body, but others, internally.