It depends on the species and the continent. For many, the main predators are Birds of Prey such as eagles and hawks. In Australia, different predators may include the dingo, introduced foxes and wild dogs, carpet pythons, Tasmanian devils (in Tasmania) and quolls.
No.
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.
Dolphins are placental mammals.
predators and mammals eat food.
No. Armadillos are placental mammals.
No. Seals are placental mammals.
No, only some mammals are predators.
Most mammals are placental...marsupial mammals and monotremes are not placental.
No, horses are equine mammals. They are not marsupials
No. Hyenas are not marsupials. They are placental mammals.
No. Camels are placental mammals.
A wallaby is a marsupial. The only monotremes, or egg-laying mammals, are the platypus and the echidna.