Hermit crab one takes it over. For some larger marine species, supporting one or more sea anemones on the shell can scare away predators. The sea anemone benefits, because it is in position to consume fragments of the hermit crab's meals. Other very close symbiotic relationships are known from encrusting bryozoans and hermit crabs forming bryoliths. When properly sized gastropod shells are not available, hermit crabs have been known to resort to wearing other objects such as tree nut hulls or pieces of beach litter rather than go unprotected. This has become very common in some areas, due not only to the
Hermit (hummingbird) notably SACC, which consider both "T. niger" and "T. leucurus" as valid species. Additionally, Mallet-Rodrigues (2006) suggested the taxon "loehkeni" should be considered a valid species, the bronze-tailed barbthroat. Three additional species, the tooth-billed hummingbird ("Androdon aequatorialis"), the green-fronted lancebill ("Doryfera ludovicae") and the blue-fronted lancebill ("D. johannae"), have been included in this subfamily in the past, but are now placed in "Trochilinae". Hermit (hummingbird) The hermits are tropical and subtropical hummingbirds in the subfamily Phaethornithinae, comprising 30–40 species in six genera. They occur from southern Mexico, through Central America, to South America as far south as northern Argentina. Their