Common Water Rat vs red kangaroo

Hydromys chrysogaster compared with Macropus rufus

Taxonomic Classification

Rank	Common Water Rat	red kangaroo
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Diprotodontia (Marsupials)
Family	Muridae (Mice & Rats)	Macropodidae (Kangaroos)
Genus	Hydromys	Macropus (Kangaroos)
Species	Hydromys chrysogaster	Macropus rufus

Evolutionary Relationship

Common Water Rat and red kangaroo share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Common Water Rat

LC — Least Concern

red kangaroo

LC — Least Concern

Population: ~11.5M

Trend: Stable →

Physical Characteristics

Attribute	Common Water Rat	red kangaroo
Diet	—	Herbivore
Average Lifespan	—	16 years
Average Length	—	1.6 m
Average Weight	—	85.0 kg

Habitat & Geographic Range

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

red kangaroo

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia.

Common Water Rat

<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.

red kangaroo

The largest kangaroo and largest marsupial on Earth, red kangaroos can stand 2 meters tall and weigh 90 kg, inhabiting the arid and semi-arid regions of inland Australia. Highly adapted to harsh desert conditions, they can survive without drinking water for long periods by extracting moisture from vegetation. Powerful hind legs enable 9-meter leaps and speeds up to 70 km/h. Males engage in ritualistic boxing contests to compete for females.