blue whale vs Common Male Fern

Balaenoptera musculus compared with Dryopteris filix-mas

Key Differences

blue whale is Vulnerable while Common Male Fern is Least Concern.

Taxonomic Classification

Rank	blue whale	Common Male Fern
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Mammalia (哺乳類)	Polypodiopsida (ウラボシ綱)
Order	Cetacea (Whales & Dolphins)	Polypodiales (ウラボシ目)
Family	Balaenopteridae (Rorquals)	Dryopteridaceae
Genus	Balaenoptera (Rorquals)	Dryopteris
Species	Balaenoptera musculus	Dryopteris filix-mas

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Common Male Fern

LC — Least Concern

Physical Characteristics

Attribute	blue whale	Common Male Fern
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

blue whale

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Male Fern

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Chile).

blue whale

地球上で生きたことが知られている最大の動物であるシロナガスクジラ（Balaenoptera musculus）は、体長33メートル、体重200トンに達することができ、心臓だけで小型自動車ほどの重さがあります。全ての海洋に生息し、極地の餌場と熱帯の繁殖地の間を回遊します。1日最大4トンのオキアミを摂取する濾過摂食者です。20世紀の捕鯨による絶滅危機からの回復後、世界的な個体数は10,000〜25,000頭と推定される絶滅危惧種です。

Common Male Fern

<em>Dryopteris filix-mas</em>, the common male fern, is a robust, semi-evergreen fern in the family Dryopteridaceae, widely distributed across Europe, North America, Oceania, and South America. It is classified as Least Concern on the IUCN Red List. This species typically grows in moist, shaded forest floors, hedgebanks, rocky slopes, and stream margins, preferring acidic to neutral soils in temperate environments. The common male fern produces large, pinnate fronds that can reach over one metre in length, arising from a central crown of scaly rhizomes. It is one of the most familiar ferns of the Northern Hemisphere and has been used medicinally for centuries, with extracts historically employed as an anthelmintic to treat tapeworm infections. The species reproduces via spores produced in kidney-shaped sori arranged in rows on the undersides of fertile fronds. Common male fern plays an important role in forest ecosystems, providing shelter and habitat structure for invertebrates and small vertebrates across its broad temperate range.