Hermit crab gives rise to the popular name "hermit crab", by analogy to a hermit who lives alone. Several hermit crab species, both terrestrial and marine, have been observed forming a vacancy chain to exchange shells. When an individual crab finds a new empty shell it will leave its own shell and inspect the vacant shell for size. If the shell is found to be too large, the crab goes back to its own shell and then waits by the vacant shell for up to 8 hours. As new crabs arrive they also inspect the shell and, if it is too big,
Cinnamon-throated hermit Cinnamon-throated hermit The cinnamon-throated hermit ("Phaethornis nattereri") is a species in the hummingbird family, Trochilidae. It is found in a broad dry to semi-humid belt along the southern edge of the Amazon Rainforest from far north-eastern Bolivia north-east to Maranhão in Brazil. Its natural habitat is tropical dry to semi-humid forest, Cerrado and woodland. With its wide range, it is considered a Species of Least Concern by the IUCN. There is quite some confusion about the taxonomic status of birds called Maranhao hermit. It is sometimes treated as a subspecies of the cinnamon-throated hermit, but at present most follow the