What are some orb weaver spider facts?


Quick Answer

Orb weaver spiders can be found all over the world. There are over 4,000 different species of them. They have two body segments, including a cephalothorax and an abdomen. They have eight legs, all of which are connected to the cephalothorax.

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Full Answer

Orb weaver spiders have venomous glands that produce a toxin used to paralyze their prey. Their body length ranges from three millimeters to 30 millimeters. Orb weavers that are nocturnal have typically either a brown or black color, while the diurnal species are more brightly colored and usually black and orange or black and yellow. Female orb weaver spiders are generally larger than the males.

Orb weaver spiders are found in terrestrial, temperate and tropical habitats. They do not do well in low temperatures below freezing and have a lifespan of around one year. These spiders have poor vision and communicate through touch or vibrations in their webs. Their webs are constructed of neatly spun silk and are flat. Orb weaver spiders usually build a new web every day. Orb weavers that are brown or black build nests at night to avoid being seen by most birds, and those that are colored brightly tend to build their webs in the morning using their noticeable coloring to show they are venomous. Their main predators are wasps, birds and other spiders.

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