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Found this huge 5 feet Western Diamondback on our way to "Biosphere 2" on the side of Biosphere Rd. near Tucson, Arizona.

Different from the Cottonmouth, this Snake seems to have had an bad day. She was in her striking position and this means, the full length of the Snake is "Striking-Zone". Knowing, my Canons 70-200 L closest focusing distance is 5 feet I knew, as long as the head is in Focus, I´m unreachable for the Snake.
After a little while at least the bloodcurdling rattling stoped and there was my chance to face the Animal on eye level. The first picture you can see here and from there the situation was relaxing a little.

As it`s possible to count the single parts of the rattle to know how old an snake is, I know that it was an 8 jear old.The Venom of an Western Diamondback is proteolytic. Proteolytic venoms are, in fact, advanced and concentrated fluids that destroy tissues and other cells through intramolecular digestion.

The venom of this species is primarily hemotoxic, affecting mainly the body's blood vessels, blood cells and the heart.General local effects include pain, bleeding, severe swelling, bruising, blistering, and necrosis. permanent tissue loss after bites from this species are common.
The Venom of an Western Diamondback is proteolytic. Proteolytic venoms are, in fact, advanced and concentrated fluids that destroy tissues and other cells through intramolecular digestion. The venom of this species is primarily hemotoxic, affecting mainly the body's blood vessels, blood cells and the heart.General local effects include pain, bleeding, severe swelling, bruising, blistering, and necrosis. permanent tissue loss after bites from this species are common.

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