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Photo Info

Dimensions4092 x 2728
Original file size7.91 MB
Image typeJPEG
Color spaceUncalibrated
Date taken6-Jul-12 08:31
Date modified10-Jul-12 16:48
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS-1D Mark IV
Focal length130 mm
Max lens aperturef/2.8
Exposure1/250 at f/25
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 200
Metering modePattern
Black-Tailed Rattlesnake

Black-Tailed Rattlesnake

A large (up to 1,219 mm or 48" in total length excluding rattle), brown, gray, yellow-brown, or golden yellow rattlesnake with a series of large, black or brown, blotches on the back (dorsal blotches). The blotches appear jagged-edged because each of this snakes dorsal scales is usually but a single color. A few light patches mark the interior of each dorsal blotch. The blotches are hexagonal with thin "straps" trailing down the sides to the belly. On the posterior part of the body the blotches become narrow, muted crossbands. The tail is black, sometimes with muted, dark, gray-brown rings. The top of the snout is usually black or dark brown. The pupils are vertically elliptical and the dorsal scales are keeled. The neck is slender and the head is broad and triangular. On the end of the tail is a rattle composed of a series of loosely interlocking keratinous sections. A new section is added each time the snake sheds its skin.