美洲瓣蹼雞 vs koala

Fulica americana compared with Phascolarctos cinereus

Key Differences

• 美洲瓣蹼雞 is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	美洲瓣蹼雞	koala
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Gruiformes (鹤形目)	Diprotodontia (雙門齒目)
Family	Rallidae	Phascolarctidae (Koalas)
Genus	Fulica	Phascolarctos (Koalas)
Species	Fulica americana	Phascolarctos cinereus

Evolutionary Relationship

美洲瓣蹼雞 and koala share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

美洲瓣蹼雞

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	美洲瓣蹼雞	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

美洲瓣蹼雞

Habitat

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

Range

Widely distributed across Europe (Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, 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.

美洲瓣蹼雞

美洲骨顶（Fulica americana）在IUCN红色名录中被评估为无危（LC），是北美洲最常见的水鸟之一，广泛分布于各类淡水湖泊、池塘和沼泽中。该物种以全身黑色的羽毛和醒目的白色喙及额甲为识别特征，善于游泳和潜水，但并不属于真正的鸭类，而属于秧鸡科。骨顶在城市公园的水体中与人类共存，适应能力极强。

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。