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The coconut crab can take a coconut from the ground and cut it to a husk nut, take it with its claw, climb up a tree 10 m (33 ft) high and drop the husk nut, to access the coconut flesh inside. [51] They often descend from the trees by falling, and can survive a fall of at least 4.5 m (15 ft) unhurt. [ 52 ]
Although it remains unclear whether or not the coconut crab is endangered, Caroline Island hosts a substantial population of the arthropod. Species recorded on Caroline Island, one of the Line Islands in the south-central Pacific Ocean:
Carcinisation (American English: carcinization) is a form of convergent evolution in which non-crab crustaceans evolve a crab-like body plan. The term was introduced into evolutionary biology by L. A. Borradaile, who described it as "the many attempts of Nature to evolve a crab". [2]
This is much faster than the expected “background” extinction rate, or the rate at which species would naturally die off without outside influence — in the absence of human beings, these 73 ...
The coconut crab is the largest terrestrial hermit crab of Okinawa and the Ryukyu Islands. [42] It is an endangered species due to over-hunting, which has made them scarce on Okinawa island. [42] In 2021, coconut crabs were found to live in a small cave system on the islet Nagashima off the Henoko district. [43]
Earth’s “normal” extinction rate usually hovers around 0.1 and 1 species per 10,000 species over 100 years, according to the World Wildlife Fund. Now, that number is thousands of times higher.
Critics say de-extinction in its purest sense isn’t possible. Colossal Biosciences, which aims to revive extinct species, has raised an additional $200 million. Critics say de-extinction in its ...
Hermit crab species range in size and shape, from species only a few millimeters long to Coenobita brevimanus (Indos Crab), which can approach the size of a coconut and live 12–70 years. The shell-less hermit crab Birgus latro (coconut crab) is the world's largest terrestrial invertebrate .