PowerPoint Presentation
Life Cycle of a Slug
A slug is a shell-less mollusc (spineless).They have two pairs
of retractable feelers or tentacles on their head. The upper pair
is for seeing and the lower pair is for smelling. In the middle of
the slug there is a hole which lets it breathe. The bottom side of
the slug is the foot. A slug moves by its muscle contracting. As it
moves it puts out mucus (slime) to protect its foot. This leaves a
slime trail.Slugs can get information from its slime trail. Facts
about slugs
seeingsmellingfootbreathing hole
Slugs play an important role in the ecosystem by eating decaying
plant material.
Some slugs are carnivorous and eat other dead slugs, snails or
earthworms.
A slug has approximately 27,000 teeth.
There are over 200 different slug species but there is one that
farmers do not like at all, the Grey Field slug.
More facts about slugs
Life Cycle
Slugs have both male and female reproductive organs. Slugs can
lay 20-100 eggs several times a year. They lay the eggs in a hole
in the ground or under the cover of an object like a fallen
log.
Life Cycle continued
Slug eggs can lay in the soil for years and then hatch when
conditions are right. The time it takes for the eggs to hatch
depends on the temperature and moisture in the ground. In cold
temperatures (0-5 degrees) it can take up to 100 days for the eggs
to develop. At higher temperatures it usually takes between 10 days
to 3 weeks for the eggs to hatch.
Life Cycle continued
Slugs are active as soon as they hatch out of the egg. They
begin to crawl and feed immediately if the temperature and humidity
are right. They are mainly nocturnal and remain still and hidden
until nightfall.
Life Cycle continuedSlugs can grow between 0.5cm to 25cm,
depending on the species.
A slug can live up to 6 years, females tend to live longer than
males.
The EndBy Rylan Narayanan
Rainbow (PON VI)Kai EngelChapter Three / Warm, track
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