Blauer Laufkäfer vs Biberratte

Carabus intricatus compared with Hydromys chrysogaster

Key Differences

• Blauer Laufkäfer is Extinct while Biberratte is Least Concern.

Taxonomic Classification

Rank	Blauer Laufkäfer	Biberratte
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Coleoptera (Käfer)	Rodentia (Nagetiere)
Family	Carabidae	Muridae (Mice & Rats)
Genus	Carabus	Hydromys
Species	Carabus intricatus	Hydromys chrysogaster

Evolutionary Relationship

Blauer Laufkäfer and Biberratte share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Blauer Laufkäfer

EX — Extinct

Biberratte

LC — Least Concern

Physical Characteristics

Attribute	Blauer Laufkäfer	Biberratte
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blauer Laufkäfer

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Biberratte

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blauer Laufkäfer

The Blue Ground Beetle (Carabus intricatus) is a species in the genus Carabus. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Biberratte

<em>Hydromys chrysogaster</em>, commonly known as the common water rat or rakali, is a semi-aquatic rodent in the family Muridae, native to Australia and New Guinea. It is classified as Least Concern by the IUCN, reflecting its relatively stable population across a broad range of freshwater and estuarine habitats on the Australian continent and associated islands. The species typically inhabits the banks of rivers, lakes, wetlands, and estuaries, where it constructs burrows in streambanks. It is highly adapted for an aquatic lifestyle, with partially webbed hind feet, a flattened head, and a dense waterproof coat. <em>Hydromys chrysogaster</em> is a carnivore, typically feeding on fish, crustaceans, mussels, frogs, and aquatic invertebrates, which it often carries to elevated feeding platforms to consume. The species is nocturnal and crepuscular, most active during early morning and evening hours near the water's edge. Biological traits including average lifespan, body length, and weight remain poorly documented in standardized databases, though adults are generally robust for a rodent, reportedly reaching body lengths of 20–35 cm excluding the tail. Geographic range details for this particular record remain incompletely documented in available data sources. Ecologically, the common water rat is an important apex predator in small-scale freshwater food webs and serves as an indicator species for wetland health in Australian riparian systems.