From MSNBC.COM: 

Lost world found inside Israeli cave

Previously unknown species lurk in cavern that was sealed off for ages

JERUSALEM - Israeli scientists say they have discovered a prehistoric ecosystem dating back millions of years.

The discovery was made in a cave near the central Israeli city of Ramle during rock drilling at a quarry. Scientists were called in and soon found eight previously unknown species of crustaceans and invertebrates similar to scorpions.

“Until now, eight species of animals were found in the cave, all of them unknown to science,” Hanan Dimantman, a biologist at the Hebrew University of Jerusalem, said Wednesday.

(more here)