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How do snakes swallow animals so much bigger than they are? - Niko Zlotnik

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Since slithering onto the scene some 150 million years ago, evolving length and limbless-ness out of their ancestral lizard forms, snakes have diversified rapidly. Their noodly bodies and flexible heads granted them access to novel places and prey. And today, there are nearly 4,000 snake species, spanning habitats high and low. Niko Zlotnik explores how snakes evolved into incredible predators.

Additional Resources for you to Explore

In this video, we discussed some of the incredible array of adaptations that snakes use to kill, swallow, and digest their prey. To learn more, check out Dr. Andrew Durso’s blog, which covers the anatomy of snake skulls and snake fangs, among other snake biology topics. And if you’re confused about the difference between the terms venomous and poisonous, you can watch this TED-Ed video all about venoms and poisons.

Snakes also have specialized sensory abilities that help them actually find and catch their prey in the first place. For example, you may have seen snakes flicking their forked tongue in and out of their mouth. Snakes use their tongues to collect chemicals from the ground or the air and transfer them to a sensory organ above their mouth. Since their tongue is forked, they can even determine which chemicals came from the right vs the left, which helps them track down prey. To learn more about tongue flicking in snakes, you can read this explainer from The Conversation and watch this Deep Look video about snake tongues.

Another amazing sensory ability is found in pit vipers as well as certain boas and pythons. Pit vipers get their name from the infrared-sensing pit organs on their face. By sensing infrared radiation, these snakes can detect and attack prey with incredible accuracy, even in the dark. You can learn more about infrared sensation from this TED-Ed video about vipers, and watch a python hunting in the dark in this National Geographic video.

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Meet The Creators

Educator
Niko Zlotnik
Director
Anna Benner
Narrator
Adrian Dannatt
Composer
Raphael Tschernuth
Sound Designer
Raphael Tschernuth
Director of Production
Gerta Xhelo
Produced by
Sazia Afrin
Editorial Director
Alex Rosenthal, Cella Wright
Fact-Checker
Charles Wallace

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