There are several types of rattlesnakes, but the easiest way to identify them is by the rattles at the end of its tail and the arrowhead shape of its head.
usually sharp fangs
If you mean a 'rattlesnake' - see the image above
Rattle Snakes look like a regular snake. Except it looks like they have small pieces of corn on the rear end of their body.
Well, they all look different, but they have the tell tale rattle on their tails.
Rattlesnakes bear live young, they do not lay eggs.
A rattlesnake.
There is no species called the "desert rattlesnake" but there are dozens of species that live in the desert. The image above is one of them.
a rattlesnake uses mimicry to look like other animals
See the image above of an eastern diamondback rattlesnake.
It has diamond shaped patterns on its scale, hence this is why it is called Diamond back.
It doesn't. Young snakes are on their own from day one.
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.
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3-18 live ones
Rattlesnakes generally produce young every 2-3 years.
The rattlesnake has a nasal opening on either side of its snout. Look at the image above.