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phoenix Zoo TRAIL CARDS
History:
More Information:
Brazilian Rainbow Boa
Found in S. America mainland
Ridges on scales act a s prism to refract light
9 subspecies of rainbow boas
Popular in pet trade - small size and beautiful color, but challenging to own
Hog Island Boa
Found on two islands in Honduras
Dwarf from of boa constrictor
Smaller and paler than mainland boas
Threatened by storms/flooding
Invasive species
Popular in pet trade
Pearl Island Boa
Founnd off Panama coast
Rare in captivity
1999 zoo study found natives kill any snake they encounter
Threats from wildlife and fish processing plant
Examples of Foster's Rule or "Island Rule" - Hog Island and Pearl Island Boas are smaller than mainland boas because food is more scarce on the islands.
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