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Narcisse Snake Dens: Garter Snake Mating and Survival

Narcisse Snake Dens: Garter Snake Mating and Survival

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Provides an overview of the red-sided garter snakes at the Narcisse Snake Dens in Manitoba, Canada, highlighting the massive spring congregation of up to 75,000 snakes emerging from brumation to mate, making it the largest snake gathering in the world.
It explains the geological factors that enable this phenomenon, such as the cracked limestone bedrock creating deep, warm tunnels that allow the snakes to survive the harsh Manitoba winters. The passage also describes the intense mating competition, including the skewed male-to-female ratio and behaviors like sexual mimicry, and details the snakes’ physical traits, diet, defense strategies, and reproductive habits. Finally, it notes threats to the population, such as vehicle collisions, and highlights conservation efforts, including the construction of protective tunnels.

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