Technically, spiders are cold-blooded animals. A spider is ectothermic, which means it uses external sources like the sun to regulate its body temperature.
Although spiders are cold-blooded, they don't become cold like mammals. They simply reduce their activity and may change their location until they can warm up.
In the fall, spiders begin preparing themselves for winter. They produce proteins that allow their tissues to experience below freezing temperatures without the ice crystals forming on their cells.
Spiders that seemingly come in out of the cold are a particular species of spider that is adapted to living inside where the conditions are not always favorable for their existence. Indoor spiders face little food and water and constant climate that might not always be to their liking.Learn More
The Brazilian wandering spider is the world's most poisonous spider. Wandering spiders belong to the genus Phoneutria, which consists of eight species. The two most venomous species include P. nigriventer and P. fera.Full Answer >
To find a photo of a brown recluse spider, simply type "brown recluse spider" into an Internet search engine. Many search engines will have an easily visible link titled "images" where many photos brown recluse spiders will appear.Full Answer >
Trapdoor spiders live throughout the Americas and in southern Africa, Europe, Asia and Australasia. Most species construct burrows in the earth and use silk, soil and foliage to camouflage the exterior. Other species utilize bark crevices as their hideouts.Full Answer >
It is an urban myth that people swallow spiders while sleeping. In reality, spiders tend to shy away from sleepers, who give off strange breathing vibrations and are not normal spider food. The arachnids prefer their own webs and prey.Full Answer >