Common Water Rat vs wild boar

Hydromys chrysogaster compared with Sus scrofa

Taxonomic Classification

Rank	Common Water Rat	wild boar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Artiodactyla (Even-toed Ungulates)
Family	Muridae (Mice & Rats)	Suidae (Pigs)
Genus	Hydromys	Sus (Pigs)
Species	Hydromys chrysogaster	Sus scrofa

Evolutionary Relationship

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

Conservation Status

Common Water Rat

LC — Least Concern

wild boar

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Common Water Rat	wild boar
Diet	—	Omnivore
Average Lifespan	—	15 years
Average Length	—	1.5 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Common Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

wild boar

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm.

Range

Widely distributed across Africa (5 countries), Asia (5 countries), Europe (12 countries), North America (14 countries), Oceania and the Pacific (14 countries), and South America (8 countries).

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.

wild boar

The ancestor of domestic pigs, wild boars are robust, omnivorous ungulates weighing up to 200 kg, found from Western Europe through Asia and North Africa in diverse habitats including forests, wetlands, and grasslands. Highly adaptable and prolific breeders, they have become invasive in many regions including North America and Australia. Their rooting behavior disturbs soil and vegetation, influencing forest structure and seed germination significantly.