Each spring, the Narcisse Snake Dens in Manitoba host the world's largest gathering of red-sided garter snakes. The snakes emerge from limestone dens and engage in mating rituals.

Narcisse in Manitoba, Canada, hosts a remarkable event where more than 75,000 Eastern Garter Snakes emerge for mating. This ...

The giant garter snake is one of North America's largest native snakes, reaching up to 64 inches in length and endemic to California's Central Valley, where it originally inhabited natural wetlands.

But they're also giving the caveat that nobody's ever seen their garter snake that big," she said. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best ...

DESCRIPTION: The giant garter snake reaches up 64 inches in length. Individual snakes vary in color from brownish to olive, with a checkered pattern of black spots, a yellow stripe down the center of ...