African elephant vs Common Toadskin Lichen

Loxodonta africana compared with Lasallia papulosa

Key Differences

African elephant is Vulnerable while Common Toadskin Lichen is Not Evaluated.

Taxonomic Classification

Rank	African elephant	Common Toadskin Lichen
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Ascomycota (子嚢菌門)
Class	Mammalia (哺乳類)	Lecanoromycetes (チャシブゴケ菌綱)
Order	Proboscidea (ゾウ目)	Umbilicariales (Umbilicariales)
Family	Elephantidae (Elephants)	Umbilicariaceae
Genus	Loxodonta (African Elephants)	Lasallia
Species	Loxodonta africana	Lasallia papulosa

Conservation Status

African elephant

VU — Vulnerable

Population: ~415.0K

Trend: Decreasing ↓

Common Toadskin Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	African elephant	Common Toadskin Lichen
Diet	Herbivore	—
Average Lifespan	65 years	—
Average Length	6.0 m	—
Average Weight	6.0 t	—

Habitat & Geographic Range

African elephant

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Common Toadskin Lichen

Habitat

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

Range

Distributed across Norway and United States.

African elephant

地球上最大の陸上動物であるアフリカゾウは体重7,000 kgに達し、サハラ以南のサバンナ、森林、湿地に生息する。成熟した雌が群れを率いる高度に知的な社会構造を持ち、超低周波音やうなり声、接触によって意思疎通する。木を引き倒したり水飲み場を掘ったり種子を散布したりすることで生態系を形成するエンジニア種だが、象牙の密猟や生息地の喪失により個体数は減少しており、危急（VU）とされている。

Common Toadskin Lichen

<em>Lasallia papulosa</em>, known as the common toadskin lichen, is a foliose lichen in the family Umbilicariaceae, belonging to the broader group of rock-dwelling umbilicate lichens. This species typically grows attached to exposed siliceous rock surfaces, particularly granite, quartzite, and other acidic rock outcrops in montane, boreal, and arctic environments across North America and parts of Europe and Asia. The thallus is typically olive-brown to dark gray in color, with a distinctively blistered or pustulate upper surface texture that gives the species its common name. It attaches to the substrate by a single central holdfast (the umbilicus), allowing the irregular, lobed thallus edges to lift freely. <em>Lasallia papulosa</em> is ecologically important as a pioneer species on bare rock, contributing to weathering processes and providing microhabitat and food for specialized invertebrates. It is sensitive to air pollution, particularly sulfur dioxide, and is often used as a bioindicator of air quality. The geographic range spans rocky regions of eastern North America, Scandinavia, the Alps, and parts of northern Asia. The species is currently assessed as Least Concern by the IUCN. Biological traits such as average growth rates, thallus dimensions, and biomass estimates remain poorly documented in the scientific literature.