How Do Spiders Go Into Hibernation?
WouterHibernation is a process that arachnids, like spiders, use to survive the winter. When it’s cold outside, the arachnids produce a chemical called glycerol that helps them survive. The chemical prevents ice from forming inside the arachnid’s body and keeps its temperature from falling too low.
During hibernation, a spider’s body temperatures are kept at a constant level around 0 deg C. This is because the arachnids are not producing as much energy as they would normally. While they are in hibernation, they don’t need as much food. They are also able to withstand colder temperatures than they normally would because their metabolism speeds up.
Hibernation can last for three to four months, depending on the type of spider. Some species of spiders skip hibernation altogether if they are in a mild climate.
Other species of spiders continue to hunt during the winter. They may remain active on warmer days, and they may find a safe place to shelter and lay eggs. These egg sacs can help baby spiderlings survive the cold.
Some spiders, such as tarantulas, enter diapause, a lighter form of hibernation. Spiders in diapause don’t need to hibernate, but they do have to conserve energy. Their bodies produce a chemical, called polyhydroxy alcohol, which lowers their body temperature and provides warmth for their young.
Unlike other animals, spiders don’t die in the cold. They stay alive by hiding in leaf litter, rock piles, and under loose bark.
