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RE: MICHIGAN RATTLE SNAKE
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by Phobos on March 29, 2004
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Yes, All but one species has rattles.
The only rattlesnake that evolved to lose it's rattle is the Catalina Island Rattlesnake (off the coast of Southern California). The theroy is that on Catalina Island there were no large land mammals (like Buffalo) for the rattlesnake to warn if they got to close, so they evolved and eventually lost it.
Al
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RE: MICHIGAN RATTLE SNAKE
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by Snakeman1982 on March 29, 2004
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Phobos,
You are absolutely correct on the Santa Catalina island rattlesnake (Crotalus catalinensis) having no rattle. However, I believe that you have the islands mixed up. There is an island off the coast of California called Santa Catalina, it has one town on it called Avalon. I learned this because I wanted to see the snake a few years ago and was looking for ways to locate it. I found that island first online because it is a very popular tourist spot. This would have been very easy to get to unlike its real location which I'll have to wait for some time before I get to photograph it.
The actual island of the "rattleless rattlesnake" is on the Santa Catalina island in Mexico. It is in the Sea of Cortez/Gulf of California section. Right around all the other rattlesnake islands like the San Esteban, Angel de la Guarda, El Muerto,etc... Very confusing I know. I was really upset whenever I thought that the "rattleless rattlesnake" was on an island just off the coast of the U.S. and not on any U.S. field guides. Then a few days later with further research I relized that there were two islands.
Just thought that you would like to know.
Robert Jadin
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RE: MICHIGAN RATTLE SNAKE
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by Phobos on March 29, 2004
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Thanks Robert,
Yes, It seems that I had the wrong island.
BTW, you have an awesome website!
Best,
Al
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RE: MICHIGAN RATTLE SNAKE
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by surucucu on March 30, 2004
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It has been found that other species of isolated island rattlesnakes are being born, evolving if you will, without rattles as well. as for michigan rattlesnakes, you are probably thinking of a little rattlesnake called the massasauga. they have very small rattles, often inaudible. chris
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