Chalk Screw-moss vs common bottlenose dolphin

Tortula vahliana compared with Tursiops truncatus

Key Differences

Chalk Screw-moss is Vulnerable while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Chalk Screw-moss	common bottlenose dolphin
Kingdom	Plantae (растения)	Animalia (животные)
Phylum	Bryophyta	Chordata (хордовые)
Class	Bryopsida (листостебельные мхи)	Mammalia (млекопитающие)
Order	Pottiales (поттиевые)	Cetacea (Whales & Dolphins)
Family	Pottiaceae	Delphinidae (Oceanic Dolphins)
Genus	Tortula	Tursiops (Bottlenose Dolphins)
Species	Tortula vahliana	Tursiops truncatus

Conservation Status

Chalk Screw-moss

VU — Vulnerable

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Chalk Screw-moss	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Chalk Screw-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

common bottlenose dolphin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Chalk Screw-moss

The Chalk Screw-moss (Tortula vahliana) is a species in the genus Tortula. It is currently classified as Vulnerable on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

common bottlenose dolphin

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.