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Old 01-25-04, 12:36 AM   #2 (permalink)
Removed_2815
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Join Date: Jul-2003
Location: Ontario
Posts: 1,176
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A Generalization (hallmark differences):
Boas: Ovoviviparous
Pythons: Oviparous
Boas and Pythons are subfamilies of Boidae.
Colubrids: A large grouping of snakes that aren't boas, pythons, vipers, elapids, hydrophiids, leptotyphlopids, etc, etc. Colubrids are generally oviparous but there are exceptions.
There are many more differences and some animals will overlap and add to the confusion, taxonomy is rarely cut-and-dry.
Cheers,
R
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