Big Water Crayfish vs Epaulard

Cambarus robustus compared with Orcinus orca

Key Differences

• Big Water Crayfish is Least Concern while Epaulard is Data Deficient.

Taxonomic Classification

Rank	Big Water Crayfish	Epaulard
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum	Arthropoda (Artropoda)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (mamalia)
Order	Decapoda (Dekapoda)	Cetacea (Whales & Dolphins)
Family	Cambaridae	Delphinidae (Oceanic Dolphins)
Genus	Cambarus	Orcinus (Orcas)
Species	Cambarus robustus	Orcinus orca

Evolutionary Relationship

Big Water Crayfish and Epaulard share a common ancestor at the Kingdom level: Animalia. (hewan)

Conservation Status

Big Water Crayfish

LC — Least Concern

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Big Water Crayfish	Epaulard
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	8.0 m
Average Weight	—	5.4 t

Habitat & Geographic Range

Big Water Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in United States.

Epaulard

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

Big Water Crayfish

The Big Water Crayfish (Cambarus robustus) is a species in the genus Cambarus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

Epaulard

The largest member of the dolphin family, orcas reach up to 9 meters and 6 tonnes and are found in every ocean from Arctic to Antarctic. Apex predators living in matrilineal pods with distinct dialects, hunting strategies, and cultural traditions that differ between populations. Some populations specialize in fish, others in marine mammals. No natural predators; orcas sit at the top of every marine food chain they inhabit.