These misunderstood, wandering arachnids are often simply young males in search of love. Here's where you might see them in ...

SWARMS of randy tarantulas are invading the US as annual mating season begins – find out where the arachnid hotspots are.

Learn how a fossil from approximately 500 million years ago traces the evolutionary origins of spiders, scorpions, and other ...

Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern ...

Not all spiders are equal in strength, hunting ability, or survival skills. This video reveals the S-tier arachnids that rule ...

A 500 million-year-old fossil with a spider's brain structure suggests that arachnids may have evolved in the oceans.

This fall, thousands of young adult male tarantulas will crawl out of hiding spots in California, Colorado, Kansas, New ...

University of Arizona researchers reviewed an "exquisitely preserved" fossil of Mollisonia symmetrica that supports the idea ...

Finely preserved brain features in a tiny marine arthropod fossil suggest that arachnids – spiders and their close kin – may ...

New research shows spiders didn’t come from the Earth’s land habitats as once believed but originated in ancient seas.

Spiders and other arachnids were thought to have originated on land. But a University of Arizona study upends the ...

ANIMALS are known to excrete ammonia, urea, or uric acid as end-products of protein metabolism. So far as we can ascertain, the problem of nitrogenous excretion in arachnids needs more ...