I believe it is called an embryo
A developing mammal inside of the mother.
A mammal embryo is the developing baby inside the mother.
A yolk is to a bird as a placenta is to a mammal. The yolk provides nourishment to the developing embryo in bird eggs, while the placenta facilitates nutrient and gas exchange between the mother and the developing fetus in mammals. Both serve vital roles in supporting development before birth.
A pig is classified as a placental mammal because it develops inside its mother's uterus connected to her via a placenta, which allows for exchange of nutrients and waste between the mother and developing offspring. This is a common feature among most mammals, including pigs.
a mammal feeds his young with milk from the mother and has hair
NIGG3RS, or placenta
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.
kangaroo
no your mother is
Insects start as eggs and mammal's are born from there mother
Mother mammals make milk for their offspring.