Hi Harold,

sorry I can't help more, but I'm not really into Amphibians. But you perhaps like to check out the AMNH research page. I know that Linda Ford and other staff members of the Herpetological Division are doing research on frogs.

Cheers,
Wulf
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http://www.leiopython.de - the white-lipped python site -
http://www.herpers-digest.com - herp related eBooks search -