The Jeju Striped Field Mouse is one of the most abundant mammals on Jeju.

Bats are the most abundant migratory mammals as crossing the water is no obstacle for them.

Coloniatherium is the largest and most abundant mammal found in the formation.

These, together with abundant small mammals are prey for wintering Hen Harrier, Merlin and Short-eared Owl.

As in other woodlands in the Eastern United States, white-tailed deer are the most abundant mammal within Black Rock Forest, providing ample hunting opportunities.

Elk or Wapiti (Cervus canadensis) are the most abundant large mammal found in Yellowstone; paleontological evidence confirms their continuous presence for at least 1,000 years.

Rodents include the white-footed mouse, the meadow vole (probably the most abundant coastal mammal) and the meadow jumping mouse.

Sea-lions, harbor seals, and the sea otters are the most abundant marine mammals.

Although threatened by deforestation, habitat degradation, and live capture for the pet trade, it is considered one of Madagascar's most abundant small native mammals.

Meadow voles are usually the most abundant small mammals in northern prairie wetlands, often exceeding 40% of all individual small mammals present.