The Life Cycle of Snails, Semi Slugs and Slugs Invertebrates: Animals without backbones 99% of Biodiversity Lorelle Holcroft and Dr John Stanisic

The Life Cycle of the Snail Adult Snail- often their shell now has a lip] Snails grow into sub-adults Snails lay eggs Snail babies hatch

The Life Cycle of the Slug Adult Slug Slugs grow into sub-adults Slugs lay eggs Snail babies hatch

Growing Up Snails take about two years to be mature for reproduction Snails spend many hours courting before they mate. They twist themselves around each other and cover themselves in frothy slime..

Snails may lay up to 85 eggs Snails lay eggs most often during the warm and damp weather. It can be as often as once a month or every 6 weeks.

Laying Eggs Each snail will go search for a soft ground to dig and lay its eggs. The snail lay its eggs in a hole in the soil or leaf litter. Each snail can lay an average of 85 eggs They hatch in 2 to 4 weeks, depending on the temperature and moisture of the soil

When they hatch… The first thing that a newly hatched snail does is to find food. It will eat whatever that is left of its eggshell too. It will also eat any eggs that have not hatched yet.

How the Snail Grows The baby snail shell stays at the top of the grown up shell As the snail grows, its shell grows too in a spiral shape. The new shell is added at the opening of the shell. The part of the shell the baby snail was born with, ends up in the middle of the spiral.

Engandgered Species of Snail BOGGOMOSS SNAIL Adclarkia dawsonensis Central Queensland

Engandgered Species of Snail Northern NSW MITCHELL’S RAINFOREST SNAIL Thersites mitchellae

http://www. environment. gov http://www.environment.gov.au/cgi-bin/sprat/public/publicthreatenedlist.pl?wanted=fauna#other_animals_endangered

Lorelle Holcroft and Dr John Stanisic