brown bear vs Laysan Duck

Ursus arctos compared with Anas laysanensis

Key Differences

• brown bear is Extinct while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	brown bear	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Ursidae (Bears)	Anatidae
Genus	Ursus (Bears)	Anas
Species	Ursus arctos	Anas laysanensis

Evolutionary Relationship

brown bear and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	brown bear	Laysan Duck
Diet	Omnivore	—
Average Lifespan	25 years	—
Average Length	2.0 m	—
Average Weight	300.0 kg	—

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brown bear

The world's most widely distributed bear species, brown bears range from North America and Europe across Russia to Japan, occupying forests, tundra, and alpine meadows. Adults can weigh up to 700 kg in coastal Alaskan populations. Omnivores that consume berries, roots, fish, and carrion, brown bears are a keystone species that distribute nutrients across landscapes. Most populations are stable, though some subspecies are threatened.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇴 Norway