Will Spiders Die in the Cold?
WouterSpiders are cold-blooded creatures, and they can live for months without food. However, some species are known to die in cold weather. There are also several ectothermic species that change their body temperature depending on their surroundings.
Some spiders build web sacs to survive the winter. These can be found on roofs, siding, or high corners of buildings. They are made from woven silk. The female can carry the egg sac herself, or it can be affixed to the surface.
Some spiders produce a chemical that helps them survive in freezing temperatures. This chemical, called glycerol, lowers the freezing point of their cells. It is also a natural antifreeze. Usually, the glycol compounds are produced throughout the winter. When the temperatures rise, these compounds are not produced.
In addition to their glycerol, spiders use a protein compound to keep their blood from freezing. This antifreeze prevents water from expanding in the ice. They also have a polyhydroxy alcohol that stops ice crystals from forming inside their bodies.
Some spiders hide under piles of leaves or rock piles. Others may seek shelter in homes. They can also find shelter inside trees. Some even make nests.
When it gets cold, spiders enter a state of diapause. This means they are less active and slow down their metabolisms. They may become dormant or migrate to a more hospitable place. When the weather warms, these spiders will wake up to hunt.
Most ectothermic spiders are able to adjust their body temperatures to suit their surroundings. Some species can survive in temperatures as low as minus 4 degrees Fahrenheit.
