What do rattlesnakes do?

rattlesnakes in California, but all have the characteristics described below in the figure on the right. No other snakes in California are dangerously venomous (a few have very mild venoms that do not affect people). And most have characteristics like the figure below on the left. read more

Like all snakes, rattlesnakes lack external ear openings, and the structures of their middle ear are not as highly specialized as those of other vertebrates, such as mammals. Thus, their sense of hearing is not very effective, but they are capable of sensing vibrations in the ground, passed by the skeleton to the auditory nerve. read more