Bates's pygmy antelope
Bates's pygmy antelope eat leaves, buds, shoots, fungus, grass, and herbs. They also eat crops, which makes them unpopular with farmers. They are often caught in snares near agricultural fields. They have a typical territory of . Males are territorial, marking their territory with scent produced in the preorbital glands. Females are friendlier with each other and sometimes live in small groups. They bark when fleeing. Most pygmy antelope mate at late dry and early wet seasons. Gestation period is 180 days. One young is born per pregnancy. The fawn weighs between .
Texas antelope squirrel
The breeding cycle begins in February, with one to two litters of between five and fourteen young raised each year. The young remain in the nest until they are about a quarter grown, which coincides with the move to solid food. Their diet includes insects, seeds and berries, including the fruit and seeds of a variety of cactus species. One adult found in 1905 had eaten the fruit of "Opuntia engelmannii" in sufficient quantities that its flesh was tinted purple.