Deep in a Croatian cave, scientists have discovered a tiny snail with a shell that looks as if it is made of glass. ... [Photos] By Deborah Netburn . Sept. 17, 2013 1:06 PM PT .

Shell of the new micro-snail, Ditropopsis mirabilis. Photo by: Kristine Greke. A new species of snail with a bizarre shell has surprised scientists. Discovered near massive waterfalls in pristine ...