Yes, some sharks do have their young in this way, it is called viviparity. Some sharks maintain a placental link to the developing young which is similar to mammalian gestation. The young are born alive and fully functional. The hammerheads, the bull and the blue sharks are viviparous.
No. Sharks are not placental mammals. They are classified as fish.
The aardvark is a placental mammal.
A rabbit is a placental mammal.
The kangaroo is not a placental mammal. It is a marsupial. Marsupials and placental mammals are different from each other.
Yes, a Velvet Monkey is a primate and a placental mammal.
Yes, shrews are placental.
Yes. A mouse is a placental mammal.
it is and placental mammal
No, a bear is a placental mammal. They also birth their cubs while in hibernation.
Yes. Dingoes are placental mammals.
No. Koalas are marsupials, not placental mammals.
Yes, monkeys are placental mammals.
Yes, primates are placental mammals