yes of course the baby of mammals develop in eggs inside mother. Here the fertilization will be internal. There are some egg laying mammals also......such as platypus and Pygmy shrew.
Yes everything animal that has babies (not eggs), milks babies,and has fur is a mammal.
No it isn't. If it was a mammal it would have live babies and breastfeed its young, but a flatworm lays eggs.
Because it gives birth to babies, not eggs
Female sharks once fertilized can either lay their eggs like a reptile, the eggs can hatch inside the mother and the babies are birthed, or they develop like a mammal embryo in the mothers womb then are birthed.
They produce live babies like any other mammal.
Pumas are mammals because they do not lay eggs. They have babies as humans do.
If it produces milk-drinking babies. The only mammal that lays eggs is a platypus, it lays milk drinking babies I assume.
They lack gills, they give birth to live babies (not eggs).
Bird babies come out of eggs. Bats come out of their mommas.
They are a mammal so their young are born alive.
yes the reptiles develop in eggs
i suppose in the UK it is a rat - urgh! but otherwise its a thing that has babies but not in an egg, like a bird is not a mammal because its babies are born in eggs mut sheep or horses etc. there mammals because they don't lay eggs.