Answer:
Marsupials
Step-by-step explanation:
A saber tooth animal or mammal is a member of the extinct group of the predatory animals that have features or characterize by the long and sharp, curved shaped saber canine teeth that are protruded from their mouth even when the mouth is closed.
These animals are closely related to the hyenas.
They have evolved many times independently within the marsupials and the placentals.