Brook Thistle vs Clawed enope squid

Cirsium rivulare compared with Abraliopsis felis

Key Differences

• Brook Thistle is Extinct while Clawed enope squid is Least Concern.

Taxonomic Classification

Rank	Brook Thistle	Clawed enope squid
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Cephalopoda (Cephalopods)
Order	Asterales (Daisies & Sunflowers)	Oegopsida (Oegopsida)
Family	Asteraceae (Daisy Family)	Enoploteuthidae
Genus	Cirsium	Abraliopsis
Species	Cirsium rivulare	Abraliopsis felis

Conservation Status

Brook Thistle

EX — Extinct

Clawed enope squid

LC — Least Concern

Physical Characteristics

Attribute	Brook Thistle	Clawed enope squid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Thistle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (7 countries).

Clawed enope squid

Brook Thistle

The Brook Thistle (Cirsium rivulare) is a species in the genus Cirsium. It is currently classified as Extinct on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Clawed enope squid

The Clawed Enope Squid, Ancistrocheirus lesueurii, is a medium-sized oceanic squid in the family Ancistrocheiridae found in mesopelagic and bathypelagic zones of the Atlantic, Pacific, and Indian Oceans. It is the sole species in its family, representing a phylogenetically isolated lineage of deep-sea squids. The species is characterized by powerful, hook-bearing tentacles used to capture prey, an adaptation reflected in its common name. The mantle is muscular and elongated, bearing lateral fins, and the arms bear suckers modified into sharp hooks in adults. Ancistrocheirus lesueurii performs diel vertical migrations, ascending toward the surface at night and retreating to deeper waters during daylight hours. It is a voracious predator of fish and other squids, and is in turn preyed upon by sperm whales, large pelagic fishes, and sharks. Bioluminescent photophores are present on the body and arms, likely functioning in counterillumination or signaling. As a mesopelagic species distributed throughout major ocean basins, the Clawed Enope Squid contributes significantly to vertical carbon transport in marine ecosystems, processing organic material from surface waters and redistributing it at depth. Population status is unknown; the species has not been assessed by IUCN. It is occasionally recovered in the stomach contents of top predators and from deep-sea trawl surveys.