Cigar shark vs gorilla

Isistius brasiliensis compared with Gorilla gorilla

Key Differences

• Cigar shark is Least Concern while gorilla is Critically Endangered.

Taxonomic Classification

Rank	Cigar shark	gorilla
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Elasmobranchii	Mammalia (포유류)
Order	Squaliformes (돔발상어목)	Primates (영장목)
Family	Dalatiidae	Hominidae (Great Apes)
Genus	Isistius	Gorilla (Gorillas)
Species	Isistius brasiliensis	Gorilla gorilla

Evolutionary Relationship

Cigar shark and gorilla share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Cigar shark

LC — Least Concern

gorilla

CR — Critically Endangered

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Cigar shark	gorilla
Diet	—	Herbivore
Average Lifespan	—	40 years
Average Length	—	1.7 m
Average Weight	—	160.0 kg

Habitat & Geographic Range

Cigar shark

Habitat

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

Range

Distributed across Chile, Norway, and Taiwan.

gorilla

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 4 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Cameroon, Congo (Republic), Equatorial Guinea, and Gabon. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cigar shark

The cigar shark, also known as the cookiecutter shark (Isistius brasiliensis), is a small but remarkable shark in the family Dalatiidae, found throughout warm oceanic waters worldwide in tropical and subtropical latitudes. Reaching only 40–50 centimeters in length, it possesses oversized jaws with large, triangular lower teeth arranged in a saw-like series that cut distinctive circular plugs of flesh from much larger prey—including tuna, dolphins, whales, billfish, and even submarine cables and human bodies. It does not kill its prey but instead latches on, rotates its body, and excises a characteristic cookie-cutter-shaped bite. The cigar shark is bioluminescent, emitting a green glow from photophores on its ventral surface that may serve as counter-illumination or to attract prey from below. It undertakes diel vertical migrations, ascending to shallower waters at night and descending to mesopelagic depths during the day. The species is classified as Least Concern by the IUCN, with a vast oceanic distribution and no targeted commercial fishery. It is occasionally taken as bycatch. The geographic epithet brasiliensis refers to Brazil, where early specimens were described, but the species' range is circumglobal in warm oceans. The cookiecutter shark's feeding strategy is one of the most unusual among elasmobranchs.

gorilla

세계에서 가장 큰 영장류인 서부고릴라는 체중이 최대 180kg에 달하며 적도 아프리카의 열대 및 아열대 삼림에 서식한다. 주로 초식성이며, 무리를 보호하고 사회적 갈등을 중재하는 실버백 수컷이 이끄는 가족 집단을 이루어 생활한다. 삼림 벌채, 식육용 밀렵, 에볼라 바이러스 발병의 위협으로 인해 심각한 위기(CR) 종으로 지정되었다.