Green-tailed Trainbearer vs koala

Lesbia nuna compared with Phascolarctos cinereus

Key Differences

Green-tailed Trainbearer is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Green-tailed Trainbearer	koala
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (burung)	Mammalia (mamalia)
Order	Apodiformes (Apodiformes)	Diprotodontia (Marsupials)
Family	Trochilidae	Phascolarctidae (Koalas)
Genus	Lesbia	Phascolarctos (Koalas)
Species	Lesbia nuna	Phascolarctos cinereus

Evolutionary Relationship

Green-tailed Trainbearer and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

Lihat Phylum: Chordata

Conservation Status

Green-tailed Trainbearer

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Green-tailed Trainbearer	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Green-tailed Trainbearer

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Green-tailed Trainbearer

A medium-sized Andean hummingbird with a long, deeply forked green tail — the longest tail relative to body size among trainbearer hummingbirds — male green-tailed trainbearers inhabit open grassland, scrub, and Andean hedgerows from Ecuador to Bolivia at elevations of 2,000–4,000 meters. Males perform aerial display flights with the ornamental tail streaming behind. Found in semi-open Andean landscapes including gardens, agricultural areas, and páramo edges where they feed at diverse flowering plants.

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.