Scared of spiders? How about scorpions? Scientists may have just discovered your worst nightmare. A 100-million-year-old arachnid preserved in amber doesn't just have eight legs, but the tail of a ...

A rare trapdoor spider, Aptostichus ramirezae, discovered in Iran, features a tail-like appendage, a trait thought extinct for millions of years. This 'living fossil' offers a unique glimpse into ...