Black-tailed rattlesnake
The Black-tailed rattlesnake is olive green, yellow, brown, or black in color. They are called the "Black-tailed rattlesnake" because of their tail which is the color of black. Like other rattlesnakes the Black-tailed rattlesnake has a rattle on the end of its tail, but its rattle is weak and can be broken. They can shed their skin several times a year.