There are 36 species.Here are some of them massassauga red diamondback timber pacific
36
There are over thirty species.
No one knows, as there are many species, and cover a wide range.
Arizona has the most species of rattlesnakes at 13. Texas ranks number 2 at 10 species.
No. Rattlesnakes are pit vipers, and cobras are elapids.
They eat many species, even rattlesnakes.
Yes, Rancho Cucamonga is in the range of several species of rattlesnakes.
There are 4 subspecies of (American) Rattlesnakes found in Mexico.
Yes there is a single population of timber rattlesnakes on the critically endangered species list in Vermont.
Ignorant or cruel humans will wantonly kill rattlesnakes despite their importance in the environment. Also, urban sprawl and industrialization are rapidly causing habitat loss for many species.
According to the National Park Service there are 47 reptile species in the Grand Canyon National Park incluing six species of rattlesnakes.
There are a number of desert rattlesnake species and each has a distinctive appearance. Pictured above is a sidewinder rattlesnake, a desert species. All rattlesnakes have a similar appearance.
Rattlesnakes are vipers so would be related to any other species of viper elsewhere in the world.