Why are there so many spiders in my house in the autumn?

In Britain spiders can be found all year round, but the majority of species reach maturity in the autumn. This is why more of the eight-legged critters are out and about from September onwards. It's the falling temperatures that drive the spiders indoors, as they're seeking warmth. Once inside the females invariably stay put - hunkering down for the winter under the floorboards or inside a cupboard. Eager to find a mating partner, though, the males become particularly active - and it's these you'll often see scuttling about the house, on the trail of a female's scent.

Quick fact

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