it is called a sperm that has a egg well thats how it grows.
The carrying of live young inside a female animal that gives live birth is called gestation. The length of the time spent in the gestation of one baby or one litter of young is called the gestation period. The time that a baby spends inside its mother (if its mother gives live birth) is called the gestational age.
what happens when a baby dolphin spends too much time on the surface of the water
Depends on the species of whale. 18 months may be the amount of time that a whale fetus spends in it's mother's womb.
it is protected by the mother until she fells like it is time to send the baby to nursury
In the book "A Place Where the Sea Remembers", by Sandra Benitez, Rafael spends a lot of time with Ines because he is teaching her how to read. Because of this, Rafael's mother assumes that the baby Ines miscarried was Rafael's.
Thrashing
A person who spends a lot of time reading is sometimes called a bookworm.
Constituents
Marsupials are mammals with a pouch. A female marsupial gives birth to a very tiny baby, which climbs into a pouch on its mother's belly. Then the baby nurses and continues to grow until it's large enough it doesn't need the pouch for protection.
Persephone spends her time either on Earth with her mother Demeter and father Zeus, or with her husband Hades in the Underworld.
The time that baby pandas remain in their mother's womb (called the gestation period) is between 95 and 160 days.
monotasking?