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The banana slug is the second largest slug in the world,
growing up to 10 inches in length. On average they range
between 6-8 inches, with a life span of 1-7 years (Harper
1988). Their coloring is sometimes bright yellow,
occasionally with black spots, or solid greenish.
Individual slugs will change colors with alterations in
food consumption, light exposure, and moisture levels.
Color may also indicate whether a slug is healthy, injured,
or what age they are (Harper 1988). Their coloring allows
them to camouflage with leaves and other debris on the
forest floor.
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They are continuously distributed throughout this
region where they seek shelter beneath coastal
redwoods and detritus. Within the primarily
Mediterranean and Marine West Coast biomes,
they remain active most of the year. Banana slugs
show arboreal tendencies but are commonly
encountered on the ground or within creek banks
and tree roots during the dry summer months
(Ingram & Lotz 1950).
 The food eaten by slugs includes many
kinds of plants, algae, fungi, lichens,
carrion, worms and insects.

These two slugs belong to the Subclass Pulmonata due to
their pnuemostones. A pnuemostone is an opening which
leads to a small lung. This is one way which the slug can
breathe. The pnuemostone is also used in excreting
waste. The slug can also breathe through its skin so long
as the skin remains moist for gas exchange to take place.
With only
one muscular
foot, a slug moves
slowly.
Another slug smells the
chemical and follows the trail
to the slug who left it.
 That is all the information on the slimy
banana slug!!!!

 I got the information on yahoo.com
 I also got the information at google.com
 I found it on sjteach.org