Bigeye thresher vs Fransenfledermaus

Alopias pelagicus compared with Myotis nattereri

Key Differences

• Bigeye thresher is Endangered while Fransenfledermaus is Critically Endangered.

Taxonomic Classification

Rank	Bigeye thresher	Fransenfledermaus
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Chondrichthyes (Knorpelfische)	Mammalia (Säugetiere)
Order	Lamniformes (Makrelenhaiartige)	Chiroptera (Fledertiere)
Family	Alopiidae	Vespertilionidae
Genus	Alopias	Myotis
Species	Alopias pelagicus	Myotis nattereri

Evolutionary Relationship

Bigeye thresher and Fransenfledermaus share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Bigeye thresher

EN — Endangered

Fransenfledermaus

CR — Critically Endangered

Physical Characteristics

Attribute	Bigeye thresher	Fransenfledermaus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Fransenfledermaus

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.