Hohojirozame vs Threeleaf Halberd Fern

Carcharodon carcharias compared with Tectaria trifoliata

Key Differences

Hohojirozame is Vulnerable while Threeleaf Halberd Fern is Near Threatened.

Taxonomic Classification

Rank	Hohojirozame	Threeleaf Halberd Fern
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Chondrichthyes (軟骨魚綱)	Polypodiopsida (ウラボシ綱)
Order	Lamniformes (ネズミザメ目)	Polypodiales (ウラボシ目)
Family	Lamnidae (Mackerel Sharks)	Tectariaceae
Genus	Carcharodon (Great White Sharks)	Tectaria
Species	Carcharodon carcharias	Tectaria trifoliata

Conservation Status

Hohojirozame

VU — Vulnerable

Population: ~3.5K

Trend: Decreasing ↓

Threeleaf Halberd Fern

NT — Near Threatened

Physical Characteristics

Attribute	Hohojirozame	Threeleaf Halberd Fern
Diet	Carnivore	—
Average Lifespan	70 years	—
Average Length	5.0 m	—
Average Weight	1.1 t	—

Habitat & Geographic Range

Hohojirozame

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, Norway, Portugal, and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Threeleaf Halberd Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Brazil, Colombia, and Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Hohojirozame

地球上で最大の捕食性魚類であるホホジロザメは、全世界の主要な大洋の冷涼な沿岸・外洋域に生息し、体長6メートル、体重2,000キログラムに達することがあります。海洋哺乳類、大型魚類、海鳥を主な獲物として下方からの待ち伏せ攻撃を行う最上位捕食者です。その恐ろしい評判にもかかわらず、人間への非挑発的な攻撃は極めてまれです。フカヒレ採取、混獲、目的的漁獲によって個体数が減少しており、多くの地域で法的保護を受けているにもかかわらず危急（VU）に分類されています。