Hermit crab wood and stone are used by some species). The tip of the hermit crab's abdomen is adapted to clasp strongly onto the columella of the snail shell. Most hermit crabs are nocturnal. Hermit crabs can be divided into two groups: As hermit crabs grow, they require larger shells. Since suitable intact gastropod shells are sometimes a limited resource, vigorous competition often occurs among hermit crabs for shells. The availability of empty shells at any given place depends on the relative abundance of gastropods and hermit crabs, matched for size. An equally important issue is the population of organisms that prey
Long-billed hermit protein. Hatchlings are fed by the female with regurgitated invertebrates. Long-billed hermits are trap-line feeders; they do not defend territory, but visit seasonal flowers on routes through the forest up to 1 km long. They pollinate some flowers such as "Aphelandra" which have long flowers adapted to the hummingbirds' long curved bill. Long-billed hermit The long-billed hermit ("Phaethornis longirostris") is a large hummingbird that is a resident breeder from central Mexico south to northwestern Colombia, extreme western Venezuela and western Ecuador. This species was formerly known as the western long-tailed hermit or just long-tailed hermit, but was renamed to highlight