Giant Vinegaroon in Dominican Republic

please identify
Location:  Dominican Republic
October 19, 2010 2:54 am
My friend found this bug in his place in the Dominican Republic. It is about 10 cm (3 inches) long. Any idea what it is?
Signature:  Sharon

Giant Vinegaroon

Dear Sharon,
This shy, nocturnal predator is a Tailless Whipscorpion, sometimes called a Giant Vinegaroon because it releases a mild acetic acid that smells like vinegar.  Despite the appearance, the Giant Vinegaroon will not harm people or pets unless the pets are Cockroaches.

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