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Yellow slugs, like the majority of other land slugs, use two pairs of tentacles on their heads to sense their environment. The upper pair, called optical tentacles, is used to sense light. The lower pair, oral tentacles, provide the slug's sense of smell. Both pairs can retract and extend themselves to avoid hazards, and, if lost to an accident ...
The black slug is a voracious seedling predator. Terrestrial slugs are considered to be especially dangerous because they alter plant species abundance, adult plant fecundity, and the production of plant defensive compounds. Black slugs are of special concern in fragmented ecosystems and areas with high shrub and tree cover.
A slug on a wall in Kanagawa, Japan.. Slug, or land slug, is a common name for any apparently shell-less terrestrial gastropod mollusc.The word slug is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a small internal shell, particularly sea slugs and semi-slugs (this is in contrast to the common name snail, which applies to ...
Slugs as a group are far from monophyletic; scientifically speaking "slug" is a term of convenience with little taxonomic significance. The reduction or loss of the shell has evolved many times independently within several very different lineages of gastropods.
In newspaper editing, a slug is a short name given to an article that is in production. The story is labeled with its slug as it makes its way from the reporter through the editorial process. The AP Stylebook prescribes its use by wire reporters (in a "keyword slugline") as follows: "The keyword or slug (sometimes more than one word) clearly ...
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The Spanish slug (Arion vulgaris, but formerly widely referred to as Arion lusitanicus owing to a misidentification) is an air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs. Other vernacular names are Lusitanian slug, Iberian slug, and killer slug.
The Pacific banana slug is the second-largest species of terrestrial slug in the world, achieving a length of up to 25 centimetres (9.8 in) [6] and a weight of up to 115 grams (4.1 ounces). [7] The largest slug species is Limax cinereoniger, which can reach 30 centimetres (12 in) in length. Banana slugs have an average lifespan of 1–7 years. [5]