While most tarantulas are not life threatening, it is true all tarantulas will bite if not handled properly or provoked to anger.
http://www.ufsia.ac.be/Arachnology/Pages/Tarantulas.html
http://www.animalsoftherainforest.org/tarantula.htm
http://www.yourpetlinks.com/exotic/tarantulas/tarantulas.html
http://homepage.ntlworld.com/the.tarantula.store
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