common arm squid vs Tigre

Brachioteuthis riisei compared with Panthera tigris

Key Differences

• common arm squid is Data Deficient while Tigre is Endangered.

Taxonomic Classification

Rank	common arm squid	Tigre
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (moluscos)	Chordata (cordados)
Class	Cephalopoda (Cefalópodos)	Mammalia (mamíferos)
Order	Oegopsida (Oegopsida)	Carnivora (carnívoros)
Family	Brachioteuthidae	Felidae (Cats)
Genus	Brachioteuthis	Panthera (Big Cats)
Species	Brachioteuthis riisei	Panthera tigris

Evolutionary Relationship

common arm squid and Tigre share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

common arm squid

DD — Data Deficient

Tigre

EN — Endangered

Population: ~4.5K

Trend: Increasing ↑

Physical Characteristics

Attribute	common arm squid	Tigre
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	3.0 m
Average Weight	—	220.0 kg

Habitat & Geographic Range

common arm squid

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile and Norway.

Tigre

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 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

common arm squid

<em>Brachioteuthis riisei</em>, commonly known as the Common Arm Squid, is a cephalopod mollusk in the family Brachioteuthidae. This species is classified as Data Deficient on the IUCN Red List, reflecting significant gaps in knowledge about its population size, ecology, and distribution. Records of this species have been reported from waters off Chile and Norway, suggesting a broad oceanic distribution. Common Arm Squids are typically mesopelagic or bathypelagic organisms, inhabiting the open ocean at considerable depths during the day and often migrating toward shallower waters at night to feed. Like other oceanic squids, they are likely important components of marine food webs, serving as both predators of small fish and invertebrates and as prey for larger marine predators such as cetaceans and seabirds. The Data Deficient listing underscores the need for additional research into the biology, population dynamics, and conservation requirements of this understudied species. Biological traits of this species remain poorly documented in the scientific literature.

Tigre

El felino mas grande del mundo, el tigre puede superar los 300 kg y habita bosques desde el Extremo Oriente ruso hasta el Sudeste Asiatico. Es un depredador solitario de emboscada con su caracteristico pelaje naranja y negro a rayas que proporciona camuflaje entre la luz filtrada. Esta en Peligro Critico, con menos de 4.000 individuos que quedan en estado silvestre debido a la caza furtiva y la deforestacion.