As well as taking fruit, they also take arthropod prey, gleaned from the branches and trunks of trees.
The stiff tail feathers enable the bird to creep up vertical tree trunks looking for arthropod prey.
Like all members of the genus, P. alpina uses mucilagenous glands covering the surface of its summer leaves to attract, trap, and digest arthropod prey.
As with all butterworts, the leaves are densely covered with glandular hairs attract, trap, and digest arthropod prey to supplement the poor nutrient availability of its environment.
Like all Dendrobatidae, D. leucomelas frogs secrete toxins from their skin, which they gain from eating certain unspecified arthropod prey.
They also consume a wide range of other small arthropod prey including crickets, caterpillars, butterflies, ants and other insects.
The long tongue can be darted forward to extract wood-boring arthropod prey; while mainly feeding on small invertebrates, Greater Flamebacks will also drink nectar.
The enzyme chitinase produced in the stomach helps digest the chitinous cuticle of arthropod prey.
This species can still trap and digest arthropod prey in its specialized bladder traps, but does so sparingly.
Red wasps prefer to capture live arthropod prey to feed their larvae and rarely scavenge.