01a_Venomous Animals

01a_Venomous Animals - VENOMOUS ANIMALS VENOMOUS ANIMALS OF...

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Unformatted text preview: VENOMOUS ANIMALS VENOMOUS ANIMALS OF THE SOUTHWEST WHY TALK ABOUT VENOMOUS ANIMALS? SO THAT YOU’RE NEITHER OVERLY WORRIED… NOR OVERLY… WELL, YOU KNOW Most rattlesnake bite victims are young men (18-28 yrs old) who are bitten while handling or provoking the snake. How to avoid being bitten or stung • Never handle venomous animals • Never place your hands or feet anywhere you can’t see (and haven’t checked). For example: – Never step into or over bushes – Never reach up onto a rock or ledge – Always pick up rocks, wood, etc. carefully, making sure not to put fingers under the rock/wood, always lift it so that the rock/wood is between you and the potential animal, and always check underneath. It is best to use a tool to lift a rock/wood. POISONOUS VS VENOMOUS? • Poisonous animals possess toxins. – For example, this Sonoran Desert Toad produces and secretes toxins from glands on its skin. The toad’s toxins are able to kill dogs that bite the toad! e.g., Parotoid Gland POISONOUS VS VENOMOUS? • Venomous animals inject their toxins. – For example, this rattlesnake produces toxins in modified salivary glands then injects toxins through hollow fangs. THE CHARACTERS: MILDLY VENOMOUS ANIMALS • Non-life-threatening except by anaphylactic shock in those that are allergic....
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This note was uploaded on 08/26/2008 for the course BIO 109 taught by Professor Fiero during the Spring '08 term at Pima CC.

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01a_Venomous Animals - VENOMOUS ANIMALS VENOMOUS ANIMALS OF...

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