Israeli scientists have discovered an ancient ecosystem containing eight previously unknown species in a lake inside a cave, where the creatures were completely sheltered from the outside world for millions of years. The newly discovered— all invertebrates— were found last month in a cave near the city of Ramle in central Israel . . .

The cave, located 328 feet below ground in a limestone quarry, includes tunnels that extend about a mile and a half. Inside lies the large underground lake where the species, some similar to scorpions and shrimp, were found.