If you walk by a giant garter snake, the first thing it does is it dives into the water and it disappears. It's very hard to find the snake, but it is greatly imperiled by habitat loss.

Endangered SF garter snake among species impacted by emerging disease in California By Amanda Bartlett , Assistant Local Editor Updated July 11, 2023 4:55 p.m.

Every spring, Narcisse in Manitoba witnesses a unique event. Around 75,000 to 150,000 red-sided garter snakes gather for mating. This is the world's largest snake aggregation.