No. Marsupials are just one of three groups of mammals. The other two are monotremes and placental mammals. The vast majority of modern mammals are placental.
Yes, all marsupials are mammals.
Firstly, all marsupials are mammals. However, not all mammals are marsupials. The jerboa is a mammal, but it is a rodent and not a marsupial.
Yes. All marsupials are mammals.
All mammal except Monotremata and Marsupial
Opossums are marsupial mammals - they have internal fertilization as all mammals do.
No.
All bears are placental mammals
All marsupials have a covering of skin and fur.
Marsupials are a division of mammals only. The tuatara is not a mammal at all. It is a reptile.
No. Marsupials are a division of mammals. A shark is not a mammal at all. It is a cartilagenous fish.
A koala is a mammal; specifically, a marsupial.
Dolphins are placental mammals.
Yes. The Tasmanian devil is a marsupial mammal, and all mammals have a pharynx.