Downy Emerald vs 虎鯨

Cordulia aenea compared with Orcinus orca

Key Differences

• Downy Emerald is Least Concern while 虎鯨 is Data Deficient.

Taxonomic Classification

Rank	Downy Emerald	虎鯨
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Insecta (昆蟲綱)	Mammalia (哺乳動物)
Order	Odonata (蜻蜓目)	Cetacea (Whales & Dolphins)
Family	Corduliidae	Delphinidae (Oceanic Dolphins)
Genus	Cordulia	Orcinus (Orcas)
Species	Cordulia aenea	Orcinus orca

Evolutionary Relationship

Downy Emerald and 虎鯨 share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Downy Emerald

LC — Least Concern

虎鯨

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Downy Emerald	虎鯨
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	8.0 m
Average Weight	—	5.4 t

Habitat & Geographic Range

Downy Emerald

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

虎鯨

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, Venezuela).

Downy Emerald

绒毛翠蜓（Cordulia aenea）在IUCN红色名录中被列为无危（LC）。其种群分布广泛、数量丰富，种群状况稳定，目前无迫切保护需求。

虎鯨

作为海豚科体型最大的成员，虎鲸（Orcinus orca）体长可达9米，体重6吨，分布于从北极到南极的所有海洋。以母系群体生活的顶级捕食者，不同种群具有独特的方言、狩猎策略和文化传统。一些种群专门捕食鱼类，另一些则捕食海洋哺乳动物。没有天敌，虎鲸位于其所栖居的每条海洋食物链的顶端。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden