真海豚 vs Cliff Mining Bee

Delphinus delphis compared with Andrena thoracica

Key Differences

• 真海豚 is Least Concern while Cliff Mining Bee is Extinct.

Taxonomic Classification

Rank	真海豚	Cliff Mining Bee
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Mammalia (哺乳動物)	Insecta (昆蟲綱)
Order	Cetacea (Whales & Dolphins)	Hymenoptera (膜翅目)
Family	Delphinidae (Oceanic Dolphins)	Andrenidae
Genus	Delphinus	Andrena
Species	Delphinus delphis	Andrena thoracica

Evolutionary Relationship

真海豚 and Cliff Mining Bee share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

真海豚

LC — Least Concern

Cliff Mining Bee

EX — Extinct

Physical Characteristics

Attribute	真海豚	Cliff Mining Bee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

真海豚

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Cliff Mining Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Luxembourg, Norway, and Sweden.

真海豚

大西洋斑纹海豚（Stenella frontalis）是一种中等体型的海豚，分布于热带和温暖的温带大西洋海域。该物种保护状态为无危（LC），以其体侧的白色斑纹和活泼的行为著称，常与渔船伴游。

Cliff Mining Bee

The Cliff Mining Bee, Andrena species in the family Andrenidae, is a solitary ground-nesting bee that excavates tunnels in cliff faces, earthen banks, and compacted sandy or loamy soils, where the loose or friable substrates exposed in cliff profiles provide ideal nesting conditions. Mining bees in the genus Andrena are among the most species-rich solitary bee genera in the world, with hundreds of species across the Holarctic region, many narrowly specialized in their choice of pollen host plants. Female cliff mining bees construct vertical or angled burrows in cliff faces, with lateral cells off the main shaft, each containing a pollen ball and a single egg. Males are typically smaller and emerge before females to establish territories near nesting sites. Many Andrena species are oligolectic, collecting pollen from only a small number of plant species, making their populations sensitive to the availability of specific flowering plants in the landscape surrounding nesting areas. Cliff and bank nesting habitats provide well-drained, sun-warmed substrates essential for brood development. The loss of natural cliff faces and earthen banks to development, vegetation succession, and quarrying reduces available nesting habitat for cliff mining bees.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden