Intertnal --
Opossums are marsupial mammals - they have internal fertilization as all mammals do.
Internal - they're mammals.
I am not a biologist, but I believe that all mammals have internal fertilization.
Whales are mammals. They have internal fertilization.
Lions are mammals, and use internal fertilisation.
Giraffes have internal fertilization. Giraffe gestation lasts 400 to 460-days. The mother gives birth standing up to a single calf. The mother then grooms the newborn and helps it stand up.
They Have Internal Fertilization
bhhj
Cheetahs are placental mammals, so they have internal fertilization and internal development within the uterus of the female.
internal fertilization
Internal because they give birth and not lay eggs. If they lay eggs, they would be like a chicken. ~Savannah B.
Internal. Dogs mate through copulation and internal fertilisation, like all mammals (including humans).