Common Rough Woodlouse vs gray wolf

Porcellio scaber compared with Canis lupus

Key Differences

• Common Rough Woodlouse is Least Concern while gray wolf is Critically Endangered.

Taxonomic Classification

Rank	Common Rough Woodlouse	gray wolf
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Arthropoda (절지동물)	Chordata (척삭동물)
Class	Malacostraca (연갑강)	Mammalia (포유류)
Order	Isopoda (등각류)	Carnivora (식육목)
Family	Porcellionidae	Canidae (Dogs & Wolves)
Genus	Porcellio	Canis (Dogs & Wolves)
Species	Porcellio scaber	Canis lupus

Evolutionary Relationship

Common Rough Woodlouse and gray wolf share a common ancestor at the Kingdom level: Animalia. (동물)

Conservation Status

Common Rough Woodlouse

LC — Least Concern

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Common Rough Woodlouse	gray wolf
Diet	—	Carnivore
Average Lifespan	—	13 years
Average Length	—	1.6 m
Average Weight	—	45.0 kg

Habitat & Geographic Range

Common Rough Woodlouse

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and deserts and xeric shrublands within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan, Sri Lanka), Europe (5 countries), North America (United States), and South America (Brazil).

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Rough Woodlouse

<em>Porcellio scaber</em>, the common rough woodlouse, is a terrestrial isopod crustacean in the family Porcellionidae. One of the most widespread and abundant woodlouse species in the world, it has established itself across Europe, the Americas, Asia, Australia, and numerous oceanic islands, including populations documented in Belgium, Brazil, Denmark, Japan, and Norway. This synanthropic species typically inhabits decaying leaf litter, rotting wood, compost heaps, under stones, and in the soil of gardens, forests, and human-modified landscapes. It thrives in moist, sheltered microhabitats and shows some tolerance for drier conditions compared to related species. As a detritivore, the common rough woodlouse feeds primarily on decaying organic matter including leaf litter, rotting wood, fungi, and plant debris, playing a significant role in nutrient cycling and decomposition processes. The species reproduces sexually, with females brooding eggs and juveniles in a specialized brood pouch. Assessed as Least Concern by the IUCN, its cosmopolitan distribution and high adaptability make it one of the most ecologically resilient terrestrial isopods. It is easily identified by its rough, grey to dark brown dorsal surface with pale lateral markings. Biological traits such as average lifespan and typical body length remain variable across populations and are not uniformly documented in standardized databases.

gray wolf

가장 넓은 분포 범위를 가진 야생 갯과 동물인 회색늑대는 북아메리카에서 유라시아에 걸쳐 툰드라, 숲, 초원 등 다양한 서식지에 분포합니다. 우세한 번식 쌍이 이끄는 가족 단위 무리를 이루어 생활하는 고도로 사회적인 동물입니다. 최상위 포식자로서 먹이 개체군을 조절하고 생태계 구조를 근본적으로 형성하는데, 옐로스톤에서의 재도입 사례가 이를 잘 보여줍니다. 한때 심각하게 박해받았으나 많은 지역에서 개체군이 회복 중입니다.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇯🇵 Japan 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States