This is unique among gastropods: all other snails lay eggs that later hatch, but in the mystery snail, the eggs hatch while still inside the female. The juvenile snails stay within the mother's ...

The strange reproductive habits of a large, carnivorous New Zealand snail were shrouded in mystery - until now ... The egg can take more than a year to hatch.

The strange reproductive habits of a large, carnivorous New Zealand snail were shrouded in mystery - until now. New shocking footage of the snail laying ... The egg can take more than a year to hatch.

Now, state wildlife officials are sounding the alarm about another unwanted creature that was recently discovered in the murky depths of Lake Lanier: “mystery snails.” Mystery snails belong to ...