I believe it is called an embryo
A developing mammal inside of the mother.
A mammal embryo is the developing baby inside the mother.
NIGG3RS, or placenta
a mammal feeds his young with milk from the mother and has hair
The developing baby inside a mammal is nourished internally by the mother until the baby is ready to be born. In an egg, the only nourishment available to the developing young is the yolk sac.
Placental (ex. placental mammal) is an animal that nourishes it's developing young internally (inutero/in a uterus) where the connection between the mother's bloodstream and the baby's blood stream using a series of membranes called the placenta. These membranes are produced by the developing offspring and attach to the uterine wall to facilitate the transfer of oxygen and nutrients to the developing "infant" and allow the removal of waste products from the "infant" to the mother.
Mother mammals make milk for their offspring.
no your mother is
kangaroo
Insects start as eggs and mammal's are born from there mother
I the mammal is a monotreme, it developes in an egg. If the mammal is in the marsupial group, it develops in a pouch on its mother. If it is a placental mammal, it develops in the placenta.
Viola Ripken