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North American Snakes Poster |
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A271
North American Snakes
Snakes
descend from lizards. Like them, they have loosely
articulated skulls, and most can dislocate their lower jaw
in order to swallow prey much larger than their own head.
They differ from legless lizards by their lack of eyelids
and external ears.
Most species are non-venomous. They are generally shy and
docile and try to avoid humans. Some are even kept as pets.
The venomous snakes use their natural weapon primarily to
subdue and kill prey. They are not normally aggressive, but
when threatened, they will protect themselves. Its best to
avoid them as some have venom powerful enough to cause
painful injury or death. This causes many people to fear
snakes. North Americans are justified in doing so because
there are some really nasty serpents slithering around the
countryside.
This poster presents the most widespread North American
species. It makes it easy to tell if a particular snake is a
threat, as the graphic design divides them into non-venomous
(green background) and venomous (red background) species.
It’s the latter you really need to be able to identify,
because the others may give you a painful bite, but won’t
kill you. |
Laminated |
No. A271L |
$18.95 |
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Non-Laminated |
No. A271F |
$9.95 |
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SAMPLE IMAGES |
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Crotalus
atrox- Western Diamondback Rattlesnake |
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Farancia
erytrogramma - Rainbow Snake |
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Lampropeltis triangulum - Milk Snake |
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