17 May 2011 Updated at 10:46 ET
Human arrival 'wiped out' Hawaii's unique crabs
Richard Black
Environment correspondent, BBC News
The crab would have looked rather like relatives found on other Pacific islands
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Land crabs unique to Hawaii, as big as a human fist and able to travel huge distances inland, were wiped out by the first human colonists around 1,000 years ago, scientists have deduced.
link-
http://www.bbc.co.uk/news/science-environment-13415890