Clown beetle vs Polar bear

Acritus komai compared with Ursus maritimus

Key Differences

Clown beetle is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Clown beetle	Polar bear
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Arthropoda (절지동물)	Chordata (척삭동물)
Class	Insecta (곤충)	Mammalia (포유류)
Order	Coleoptera (딱정벌레목)	Carnivora (식육목)
Family	Histeridae	Ursidae (Bears)
Genus	Acritus	Ursus (Bears)
Species	Acritus komai	Ursus maritimus

Evolutionary Relationship

Clown beetle and Polar bear share a common ancestor at the Kingdom level: Animalia. (동물)

보기 Kingdom: Animalia

Conservation Status

Clown beetle

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Clown beetle	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Clown beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Asia (Indonesia), Europe (4 countries), and North America (Canada, United States).

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Clown beetle

Acritus komai is a minute histerid beetle (family Histeridae) belonging to the subfamily Abraeinae. Members of this subfamily are among the smallest beetles in the family, typically measuring less than 2 mm in length. Like all histerids, A. komai is presumed to be predatory, likely feeding on mites, nematodes, or small dipteran eggs and larvae in decaying organic substrates. The genus Acritus comprises numerous species distributed across multiple continents, and members are often associated with rotting wood, dung, carrion, and fungal fruiting bodies. A. komai appears to have a cosmopolitan or wide distribution, possibly facilitated by passive transport in organic material. The species has not been formally assessed by the IUCN, reflecting the general lack of conservation data for many microhabitat-specialist invertebrates. Its extremely small size and cryptic habits make field observation and population assessment challenging. Systematic studies of this genus rely primarily on detailed morphological examination of antennal club structure, elytral striae, and prosternal keels, which are important diagnostic characters in Histeridae taxonomy.

Polar bear

지구상에서 가장 큰 육상 육식동물인 북극곰은 700kg을 넘을 수 있으며 캐나다에서 러시아까지 북극 해빙 전역에 분포한다. 고리 물범과 수염 물범을 사냥하기 위해 해빙에 의존하는 고도로 특수화된 해양 포유류이다. 광활한 거리를 헤엄쳐 다닐 수 있는 뛰어난 수영 실력을 가지고 있다. 취약종으로 등재되어 있으며, 기후 변화로 인한 급격한 북극 해빙 감소로 심각한 압력을 받고 있다.