Arraia vs pinguim-imperador

Rajella bigelowi compared with Aptenodytes forsteri

Key Differences

Arraia is Least Concern while pinguim-imperador is Near Threatened.

Taxonomic Classification

Rank	Arraia	pinguim-imperador
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Aves (ave)
Order	Rajiformes (Rajiformes)	Sphenisciformes (Penguins)
Family	Rajidae	Spheniscidae (Penguins)
Genus	Rajella	Aptenodytes (Great Penguins)
Species	Rajella bigelowi	Aptenodytes forsteri

Evolutionary Relationship

Arraia and pinguim-imperador share a common ancestor at the Phylum level: Chordata. (cordados)

View Phylum: Chordata

Conservation Status

Arraia

LC — Least Concern

pinguim-imperador

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute	Arraia	pinguim-imperador
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Arraia

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Portugal.

pinguim-imperador

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.

Arraia

The Bigelow's ray (Rajella bigelowi) is a species in the genus Rajella. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

pinguim-imperador

O maior pinguim do mundo, os pinguins-imperadores medem até 1,2 metro de altura e pesam 45 kg, habitando o continente antártico em algumas das condições mais extremas da Terra. Reproduzem-se no meio do inverno, na escuridão, a temperaturas abaixo de -60°C, com os machos incubando ovos únicos sobre os pés sob uma bolsa de criação por 65 dias enquanto as fêmeas estão no mar. Seu comportamento de aglomeração — onde os indivíduos revezam-se pelo centro quente de grupos de milhares — é uma obra-prima de sobrevivência cooperativa.