# Black Slug (*Arion ater*) The Black Slug is a soft, slimy creature that loves to munch on leaves and plants. They are often found in gardens and damp places, helping to break down dead plants. - **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 7 - **Habitat:** Urban areas, Gardens ![Black Slug](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Black_Slug.jpg&width=800) Photo: Prashanthns, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Black_Slug.jpg) ## Appearance The Black Slug is a large, shiny gastropod mollusk, typically entirely jet-black, though sometimes dark brown or even reddish-orange. It has a wrinkled body, two pairs of retractable tentacles on its head, and a saddle-like mantle towards the front. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Mollusca - **Class:** Gastropoda - **Order:** Stylommatophora - **Family:** Arionidae - **Genus:** Arion ## Interesting facts - Black slugs are hermaphrodites, meaning each slug has both male and female parts! - Did you know slugs have thousands of tiny teeth on a ribbon-like tongue called a radula? - Their slime changes thickness, becoming extra sticky to warn predators or signal danger! - When threatened, they can roll into a ball like a tiny armadillo to protect themselves! ## Special abilities - **Slime Shield:** Black Slugs produce thick, sticky mucus that helps them glide across surfaces and deters predators by being unpleasant to eat. - **Breathing Pore:** Black Slugs breathe through a special hole called a pneumostome, located on their right side, that helps them take in air. - **Taste Tentacles:** Black Slugs have shorter front tentacles that can taste and smell their surroundings, helping them find food and navigate. - **Stealthy Mover:** Black Slugs can flatten their bodies and fit through tiny gaps, allowing them to hide from danger or find new food sources. ## Measurements & details - **Size:** 100-150 mm - **Lifespan:** 365-730 days - **Leg Count:** 0 ## Diet & Feeding Black slugs are nature's recyclers, munching on decaying plants and fungi to keep ecosystems clean! - **Primary Foods:** decaying leaves, mushrooms, fallen fruit, algae, seedlings - **Foraging Method:** Foraging ## Ecological connections - **Eats:** [European Hedgehog](https://www.snappit.app/explore/european-hedgehog) (*Erinaceus europaeus*) — Hedgehogs are common predators of slugs in gardens. - **Eaten by:** [Common Blackbird](https://www.snappit.app/explore/common-blackbird) (*Turdus merula*) — Blackbirds often feed on slugs, especially smaller ones. - **Eats:** [Violet Ground Beetle](https://www.snappit.app/explore/violet-ground-beetle) (*Carabus violaceus*) — Some ground beetles hunt and eat slugs and their eggs. - **Eats:** [English Oak](https://www.snappit.app/explore/english-oak) (*Quercus robur*) — Black slugs decompose fallen leaves from trees like oaks. ## Traits - [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem. - [Urban Friendly](https://www.snappit.app/explore/traits/urban-friendly): This habitat trait indicates species that can coexist with humans in urban and suburban environments, utilizing man-made structures and green spaces. - [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 1/5 · Very low Don't touch slugs with bare hands, as their slime can be slippery. ## Frequently Asked Questions ### How to identify Black Slug? Compare body symmetry, shells, segments, legs, tentacles and how the animal moves. Invertebrates span many unrelated groups, so start with body structure. Invertebrate Identifier: upload a photo and compare the visible details. ### How big is Black Slug? 100-150 mm ### How long does Black Slug live? 365-730 days ### What does Black Slug eat? Black slugs are nature's recyclers, munching on decaying plants and fungi to keep ecosystems clean! ### Where is Black Slug usually found? Urban areas, Gardens ### How does Black Slug hunt? Foraging ### How many legs does Black Slug have? 0 ## Where to spot - [Cougar Mountain Regional Wildland Park](https://www.snappit.app/guides/places/cougar-mountain-regional-wildland-park) — Washington, US · Park - [Carl S. English, Jr., Botanical Gardens](https://www.snappit.app/guides/places/carl-s-english-jr-botanical-gardens) — Washington, US · Botanical Garden - [Hoh Rainforest](https://www.snappit.app/guides/places/hoh-rainforest) — Washington, US · Nature Reserve - [Langford Lake Park](https://www.snappit.app/guides/places/langford-lake-park) — British Columbia, CA · Park - [Nyack Ranger Station Historic District](https://www.snappit.app/guides/places/nyack-ranger-station-historic-district) — Montana, US · Historic District - [Peter Roose Homestead](https://www.snappit.app/guides/places/peter-roose-homestead) — Washington, US · Historic Site [View all places to see Black Slug](https://www.snappit.app/guides/where-to-see/black-slug) ## More Invertebrate - [Coral](https://www.snappit.app/explore/coral) - [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*) - [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*) - [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*) --- Source: [Black Slug: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/black-slug)