Brown Diving Beetle vs Coelacanth

Agabus brunneus compared with Latimeria chalumnae

Key Differences

• Brown Diving Beetle is Extinct while Coelacanth is Critically Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	Coelacanth
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum	Arthropoda (Artropoda)	Chordata (Chordates)
Class	Insecta (serangga)	Coelacanthi (Coelacanthi)
Order	Coleoptera (kumbang)	Coelacanthiformes (Coelacanth)
Family	Dytiscidae	Latimeriidae
Genus	Agabus	Latimeria
Species	Agabus brunneus	Latimeria chalumnae

Evolutionary Relationship

Brown Diving Beetle and Coelacanth share a common ancestor at the Kingdom level: Animalia. (hewan)

Conservation Status

Brown Diving Beetle

EX — Extinct

Coelacanth

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brown Diving Beetle	Coelacanth
Diet	—	Carnivore
Average Lifespan	—	100 years
Average Length	—	1.8 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

Coelacanth

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types spanning the Australasia and Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Comoros, Indonesia, Mozambique, and South Africa. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Diving Beetle

The Brown Diving Beetle (Agabus brunneus) is a species in the genus Agabus. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Coelacanth

A living fossil thought extinct for 65 million years until rediscovered off South Africa in 1938, coelacanths can reach 2 meters and 90 kg. They belong to an ancient lobe-finned lineage more closely related to tetrapods than to ray-finned fish, making them scientifically invaluable for understanding vertebrate evolution. Found in deep rocky reef habitats of the Indian Ocean, they are nocturnal and undergo internal fertilization, giving birth to fully formed live young. Critically Endangered.