🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Armadillidium vulgare

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Genus

Armadillidium

Species

Armadillidium vulgare

Malacostraca🍂 Omnivore

Common pill bug

Armadillidium vulgare (Common pill bug · オカダンゴムシ)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

Omnivore

Length · Height

0.1~1.8cm · No data

Mass · Top Speed

0.1~0.1g · No data

Habitat & Fossil Locality

Moist ground covered with leaf litter, on land in temperate and tropical forests, parks, and farmland

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its body length of 18 mm is about 2/3 the diameter of a 500-won coin (26.5 mm).
💡 It also lives in cities, residential areas, and farmland, sometimes eating pieces of carrot root or lettuce leaves in kitchen gardens.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)1

Site-computed relative index from recorded values; not a formal scientific metric.

#공벌레#Armadillidium vulgare

📖 1. Overview

The common pill bug (Armadillidium vulgare) is a terrestrial isopod (crustacean) that rolls its body into a ball when touched, living under leaf litter in forests, cities, and farmland.

🦴 2. Anatomy & Morphology

Its body is a flattened oval about 2 times as long as it is wide, covered by a thick, hard shell. Its trunk has glands that release unpleasant secretions, and when threatened it rolls its rear segments toward the front segments to form a ball.

🔍 3. Ecology & Behavior

Primarily a decomposer feeding on decaying leaf litter, it also eats dead animals during droughts as well as pieces of carrot root or fruit. Nearly 10% of its diet is obtained by re-ingesting its own feces.