When two of nature's most feared arachnids go head-to-head, it is far from a simple battle. The tarantula and the scorpion ...

A new analysis of a specimen found more than 40 years ago reveals the oldest known chelicerate, defined by its pair of pincer ...

It had been a long day of teaching for Rudy Lerosey-Aubril. As a reward, he returned to cleaning an intriguing Cambrian ...

Just an hourlong ferry’s ride from the coast of southern California is the only place in the world you can see what might ...

What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a ...

A fossil originally discovered in the 1980s only recently received a closer look, revealing groundbreaking evolutionary ...

A breakthrough discovery in Utah has revealed a 500-million-year-old chelicera fossil that is the oldest known spider and ...

"The savanna’s newest recruits are heading into the field. Weighing under two pounds and standing just inches tall, a new ...

Early arthropod specimens don’t have claws like these. Instead, Cambrian arthropods usually have an antenna in that position.

Rudy Lerosey-Aubril A tiny claw in a 500-million-year-old fossil just rewrote the origin story of spiders. After a full da ...