Ecologists and ichthyologists, who began studying these "regulated" rivers in an effort to rectify past miscalculations, first focused on the disruption of upstream spawning migrations of adult fish.

This framework outlines 23 targets to be achieved by 2030, aimed at halting biodiversity loss and restoring natural ecosystems.

The meeting brought together more than 150 specialists from 30 cities across Russia and abroad, representing over 40 scientific and educational organizations.

Mountain peaks have always beckoned explorers, and among the most beautiful sights encountered along the way are, without a doubt, mountain lakes.

At present, there are about 750 tigers in Russia, while in China - according to Chinese researchers - the number ranges from 70 to 90.

Staff members of the Institute, as well as colleagues from other RAS institutes, attended the event, which helped strengthen inter-institute ties.

In the mountainous regions of Western Europe, these lizards lay eggs, whereas throughout the rest of their range, they are ovoviviparous.

The acoustic structure of the pikas' ultrasonic calls was very simple, lacking frequency contour breaks or any nonlinear phenomena.

The story of the Severtsovs spans nearly two centuries of scientific tradition and several generations; each generation built upon the ideas of its predecessors while simultaneously pioneering new directions in biology.

Males are brightly colored, aggressively defend their territory, and fall prey to predators more frequently than females.

Researchers collected DNA samples from the discovered fish and sequenced the COI gene - a genetic "barcode" unique to each species.

The new issue of the Journal of Ichthyology (Voprosy Ikhtiologii) is available for reading and download: Vol. 66, No. 5, 2026.

Experts also believe it is essential to foster cooperation between the business sector and the government to develop measures for the protection and sustainable use of marine ecosystems.

Spectrographic analysis revealed that the structure of the rhythmic "chattering" sounds used by the female to call her kittens differs from any known vocalizations of domestic cats.

Males produced long series of rutting barks - resembling the barking of dogs - while the females' varied contact calls sounded like the shrill cries of cats.

Speakers paid tribute to two representatives of a brilliant evolutionary lineage - a family that has for over a century been conducting successful research in zoology, ecology, embryology, morphology, and evolutionary theory.

Glacial retreat driven by global climate change creates unique sites for studying primary succession - the process by which biotic communities form from scratch on barren, lifeless surfaces.

The expedition began in Chelyabinsk. Participants explored the region's history by visiting the State Historical Museum of the Southern Urals, where they viewed one of the largest fragments of the Chelyabinsk meteorite.