Cactus-apple vs Common Seal

Opuntia engelmannii compared with Phoca vitulina

Key Differences

Cactus-apple is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Cactus-apple	Common Seal
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Mammalia (哺乳類)
Order	Caryophyllales (ナデシコ目)	Pinnipedia (Seals & Sea Lions)
Family	Cactaceae	Phocidae (True Seals)
Genus	Opuntia	Phoca (Harbor Seals)
Species	Opuntia engelmannii	Phoca vitulina

Conservation Status

Cactus-apple

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Cactus-apple	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Cactus-apple

Habitat

Inhabits tropical and subtropical grasslands and savannas within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (5 countries), Europe (4 countries), and Oceania and the Pacific (Australia).

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Cactus-apple

The Cactus-apple (Opuntia engelmannii) is a species in the genus Opuntia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical grasslands and savannas within the Afrotropic biogeographic realm.

Common Seal

最も広く分布する鰭脚類であるゴマフアザラシの近縁種・ゼニガタアザラシ（Phoca vitulina）は、北大西洋と北太平洋の温帯・亜北極沿岸に生息する。成体は最大130kgに達し、海での魚・イカ・甲殻類の捕食と海岸や岩場での休息にほぼ同じ時間を費やす。大きく表情豊かな目は低照度での水中視覚に適応している。シャチ・サメ・ホッキョクグマにとって重要な食料源である。