There are thousands of different snake species, and they all have a few things in common. They don't have legs, they are carnivorous, and humans are afraid of them. We have good reason to be scared, since snakes can be quite venomous, the better to disable prey and repel threats. But all these different kinds of snakes have a wide variety of techniques for killing.
Some will eat another animal that's bigger than they are, and have developed some weird physiological tricks to get away with that. Despite one graphic in this TED-Ed video, we've never seen a case of a snake swallowing an elephant, but they have been known to consume an entire alligator or deer. Others specialize in one specific type of prey and have adapted both their anatomy and lifestyle to surviving off of it. There are reasons snakes have survived on earth so long, and why we are seemingly born to fear them.
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