21st Century - Artensterben

Qutang-Schlucht am Jangtse (Changjiang) in der Drei-Schluchten-Region in China

The Qutang Gorge on the Yangtze (Three Gorges region): heavily burdened for decades—a study now shows the first signs of ecological recovery. (© Tan Wei Liang Byorn, CC BY 3.0, via Wikimedia Commons)

21. February 2026 Doreen Fräßdorf

Hope for the Yangtze: study shows how a fishing ban is reviving the river

The Yangtze River is Asia’s longest river at over 6,300 kilometers and the third-longest river in the world. For millennia it was among the world’s most species-rich freshwater ecosystems. It supplied people, animals, and entire cultures with water, food, and habitat—and formed the ecological backbone of large parts of China.

Biophobia and the Alienation from Nature

4. February 2026 Doreen Fräßdorf

When Nature Becomes Alien: How Alienation and Fear Accelerate Species Extinction

The loss of biodiversity is one of the greatest ecological crises of our time. Yet, while threatened species, habitat destruction, and climate change are intensely debated, one aspect often remains unnoticed: the waning relationship between humans and nature. Two recent studies reveal the depth of this alienation – and its

Illustration of the Chinese river dolphin (baiji)—once a characteristic resident of the Yangtze. With its long, narrow snout and the sickle-shaped dorsal fin, the baiji was unmistakable. Today, the species is considered “functionally extinct”. (© Doc Taxon, CC BY-SA 3.0, via Wikimedia Commons)

1. August 2025 Doreen Fräßdorf

Chinese river dolphin: Is the baiji still alive?

The last confirmed sighting of the baiji, also known as the Chinese river dolphin, is now more than 20 years ago. The IUCN therefore classifies the species as “Critically Endangered (Possibly Extinct)”. Scientifically, its continued existence is considered extremely unlikely, but occasional sighting reports and video recordings at least leave

Überreste des Beutelwolfs im UCL Grant Museum in London

Remains of the thylacine, which was exterminated by hunting in the early 20th century. (© Doreen Fräßdorf, fotografiert im UCL Grant Museum of Zoology in London, England, 2024)

22. July 2024 Doreen Fräßdorf

Extinctions: How Many Animal Species Have We Already Wiped Out?

There have been five mass extinction events in the history of Earth’s biodiversity, all caused by natural phenomena. It is believed that the sixth mass extinction is currently underway, this time solely driven by human activities. The Thylacine, the aurochs, and the dodo are just a few of the most

Neu entdeckte Tiere 2023: Krokodilsmolch Tylototriton ngoclinhensis

The species name ngoclinhensis refers to the type locality of the newly discovered Ngoc Linh crocodile newt (Tylototriton ngoclinhensis): Ngoc Linh Mountain in Vietnam’s Central Highlands. (© Phung TM, Pham CT, Nguyen TQ, Ninh HT, Nguyen HQ, Bernardes M, Le ST, Ziegler T, Nguyen TT (2023) Southbound – the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species. ZooKeys 1168: 193-218.)

9. November 2023 Doreen Fräßdorf

Newly discovered animals 2023

It is said that between 11,000 and 58,000 animal and plant species irreversibly go extinct each year, but there is also good news: around 18,000 new species are described and named by taxonomists each year; this number includes extinct or fossilized organisms, as well as bacteria and viruses. Even in

The extinct tree snail Achatinella apexfulva (top) at the Naturalis Biodiversity Center in Leiden, the Netherlands. The species epithet apexfulva means “yellow tip” and refers to the color of the shell. (© Naturalis Biodiversity Center, CC0, via Wikimedia Commons)

29. April 2023 Doreen Fräßdorf

Yellow-tipped Oahu tree snail

Hawaii’s first scientifically described snail The yellow-tipped Oahu tree snail (Achatinella apexfulva) is not only the first scientifically described snail of the Hawaiian archipelago but also the first officially declared extinct. The species was first described in 1789 by British sailor and explorer George Dixon, who acquired a traditional necklace

Drawing of a Chinese paddlefish from 1868. The frontal portion made up around one-third of the fish's total length. Chinese paddlefish reached lengths of more than three meters and weights of up to 300 kilograms. (© Muséum d'histoire Naturelle, Public domain, via Wikimedia Commons)

8. August 2021 Doreen Fräßdorf

Chinese Paddlefish

An ancient swimming fossil in the Yangtze River—the Chinese paddlefish The Chinese paddlefish and its relatives were already swimming through Earth’s waters more than 100 million years ago. This freshwater predator, said to have reached lengths of seven meters and weights of several thousand pounds, survived the mass extinction 66

weissbrust-brillenvogel / Zosterops albogularis

Drawing of the White-chested white-eye by John Gould (between 1840 and 1848). Gould was the first to describe the songbird scientifically in 1937. (© Rawpixel, CC BY-SA 4.0, via Wikimedia Commons)

18. May 2018 Doreen Fräßdorf

White-chested white-eye

Extinct in recent times The White-chested white-eye was native only to a forest area of five square kilometers at Mount Pitt on Norfolk Island. Norfolk Island lies east of Australia and north of New Zealand. Experts assume the bird species went extinct in recent times. The last confirmed sighting of