Eaton's shield fern vs Emperor Penguin

Polystichum scopulinum compared with Aptenodytes forsteri

Key Differences

• Eaton's shield fern is Extinct while Emperor Penguin is Near Threatened.

Taxonomic Classification

Rank	Eaton's shield fern	Emperor Penguin
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Aves (Birds)
Order	Polypodiales (Polypodiales)	Sphenisciformes (Penguins)
Family	Dryopteridaceae	Spheniscidae (Penguins)
Genus	Polystichum	Aptenodytes (Great Penguins)
Species	Polystichum scopulinum	Aptenodytes forsteri

Conservation Status

Eaton's shield fern

EX — Extinct

Emperor Penguin

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute	Eaton's shield fern	Emperor Penguin
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Eaton's shield fern

Habitat

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

Range

Found in Canada.

Emperor Penguin

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Emperor Penguin

The world's largest penguin, emperor penguins stand up to 1.2 meters and weigh 45 kg, inhabiting the Antarctic continent in some of the most extreme conditions on Earth. They breed in midwinter darkness at temperatures below -60°C, with males incubating single eggs on their feet under a brood pouch for 65 days while females are at sea. Their huddling behavior — cycling individuals through the warm center of thousands-strong groups — is a masterclass in cooperative survival.