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 .
Antlion
Depending on the species and where it lives, the larva either conceals itself under leaves, debris or pieces of wood, hides in a crack or digs a funnel-shaped pit in loose material. As ambush predators, catching prey is risky because food arrives unpredictably and, for those species that make traps, maintaining one is costly; the larvae therefore have low metabolic rates and can survive for long periods without food. They can take several years to complete their life-cycle; they mature faster with plentiful food, but can survive for many months without feeding. In cooler climates they dig their way deeper and remain inactive during the winter.
When the larva attains its maximum size, it pupates and undergoes metamorphosis. It makes a globular cocoon of sand or other local substrate stuck together with fine silk spun from a slender spinneret at the rear end of the body. The cocoon may be buried several centimetres deep in sand. After completing its transformation into an adult insect over the course of about one month, it emerges from the case, leaving the pupal integument behind, and works its way to the surface. After about twenty minutes, the adult's wings are fully opened and it flies off in search of a mate. The adult is considerably larger than the larva as antlions exhibit the greatest disparity in size between larva and adult of any type of holometabolous insect. This is by virtue of the fact that the exoskeleton of the adult is extremely thin and flimsy, with an exceptionally low density. The adult typically lives for about 25 days, but some insects survive for as long as 45 days.