<p><br> This prairie rattlesnake is poised to strike. Adult rattlesnakes, unlike juveniles, are able to regulate the amount of venom in their bites.</p>

Coiled Prairie Rattlesnake


This prairie rattlesnake is poised to strike. Adult rattlesnakes, unlike juveniles, are able to regulate the amount of venom in their bites.

Photograph by Chris Johns

Rattlesnakes

See rattlesnake pictures in this photo gallery from National Geographic.

Read This Next

225-year-old working warship sustained by a Navy forest
Can today's youth overcome widespread climate anxiety?
To discover wild America, follow Bigfoot’s mythical steps

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet