vs koala

Chrysochromulina pringsheimii compared with Phascolarctos cinereus

Key Differences

• is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank		koala
Kingdom	Chromista (色藻界)	Animalia (动物界)
Phylum	Haptophyta (定鞭藻門)	Chordata (脊索动物门)
Class	Prymnesiophyceae (普林藻纲)	Mammalia (哺乳動物)
Order	Prymnesiales (定鞭金藻目)	Diprotodontia (雙門齒目)
Family	Chrysochromulinaceae	Phascolarctidae (Koalas)
Genus	Chrysochromulina	Phascolarctos (Koalas)
Species	Chrysochromulina pringsheimii	Phascolarctos cinereus

Conservation Status

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

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.

Chrysochromulina pringsheimii is a haptophyte microalga in the family Prymnesiaceae, named for the German botanist Nathanael Pringsheim, who made foundational contributions to algal biology in the nineteenth century. The species follows the Chrysochromulina body plan: a biflagellate cell with a haptonema and a surface coat of organic scales arranged in overlapping layers. Scale morphology observed under electron microscopy provides the principal characters used to distinguish C. pringsheimii from related species. The species is found in marine and occasionally brackish coastal waters of northern Europe, consistent with the biogeographic concentration of described Chrysochromulina diversity in Scandinavian seas. As a nanoplankton primary producer, it participates in carbon fixation and the transfer of photosynthetically fixed carbon to higher trophic levels via grazing by heterotrophic nanoflagellates and microzooplankton. Some Chrysochromulina species produce dimethylsulfoniopropionate, contributing to the oceanic sulfur cycle. The conservation status of C. pringsheimii has not been evaluated by the IUCN, and the species is listed as Not Evaluated. Global environmental sequencing suggests that the diversity of haptophyte nanoflagellates in the world's oceans greatly exceeds what has been formally described.

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。