Snakes Are Moving In—Here’s Why

Biologists and urban ecologists are raising concerns as climate change and urban sprawl squeeze wildlife into tighter spaces. As cities expand, green areas that once supported animal life are vanishing beneath highways, neighborhoods, and office buildings.

With natural habitats shrinking, many animals have no choice but to adapt—or move closer to humans.

Snakes, especially grass snakes, are proving to be surprisingly adaptable. These non-venomous reptiles are not aggressive and usually avoid conflict with people. Their diet consists of insects, small rodents, and amphibians, making them essential for controlling local pest populations.

As grasslands and forests disappear, snakes increasingly seek refuge in suburban gardens, parks, and even inside homes. Cool, dark places like basements, garages, and woodpiles offer shelter and mimic their natural hiding spots.

While many people fear snakes, most species pose little to no threat. In fact, their presence can be a sign of a healthy local ecosystem, especially in areas where rodents might otherwise thrive unchecked.

Still, the sudden appearance of snakes in urban settings can be unsettling. Residents are encouraged to stay calm, avoid handling the animals, and contact local wildlife professionals if removal is necessary.

Creating safe corridors or maintaining pockets of green space can help prevent such close encounters. Even small steps, like keeping yards tidy and sealing cracks in walls or foundations, can reduce the chances of snakes entering homes.

Snakes aren’t invading—they’re surviving. As the world changes, so too must our understanding of where wildlife belongs. Sharing our space may be part of the future.