Helena's Treefrog vs Lesser Noctule

Osteocephalus helenae compared with Nyctalus leisleri

Key Differences

• Helena's Treefrog is Data Deficient while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Helena's Treefrog	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Chiroptera (Bats)
Family	Hylidae	Vespertilionidae
Genus	Osteocephalus	Nyctalus
Species	Osteocephalus helenae	Nyctalus leisleri

Evolutionary Relationship

Helena's Treefrog and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Helena's Treefrog

DD — Data Deficient

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Helena's Treefrog	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Helena's Treefrog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Venezuela.

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.