The new issue of the journal "Problems of Ichthyology" is now available for reading and download: Volume 66, Issue 4, 2026.

Parasites are useful model objects for studying how broad ecological niches influence evolutionary patterns.

The results are important for predicting ecosystem resilience, preserving biodiversity, and developing ecologically sound approaches to managing natural and agricultural areas.

The authors analyzed more than 300 food webs in aquatic and terrestrial ecosystems worldwide.

Visiting the Caucasus is always pleasant and interesting, especially when faced with unique and intriguing challenges.

Congratulations to our colleague on his victory!

The expedition conducted visual counts of seals along the entire shoreline of Lake Baikal and assessed the distribution of the animals in areas with varying levels of anthropogenic pressure.

Over the course of 3 weeks, a team of biologists deployed 50 cameras using a specially developed methodology, detailed in the CAMMON Photo Monitoring Program, published by the Central Forest Reserve.

The conference brought together researchers from various institutes spread across Kaliningrad and the Kola Peninsula to Tyumen.

The rate at which cigarette filters degrade depends on climate, the activity of soil organisms, and the type of ecosystem.

This is an opportunity to spend a day in nature, learn more about the world around you, and try your hand at being an explorer.

Specialists from the IEE RAS assessed the flux of dipterous insects (flies and mosquitoes) emerging from the soil in forest ecosystems.

De Winton noted its unusual morphological features when describing the species: "The skull is unusually square and short, and unlike any other gerbil known to me."

This publication is recommended for geographers, biologists, ecologists, and a wide range of readers interested in Russia's natural environment, its biodiversity, and conservation prospects.

These results demonstrate the need for further research on bat trematodes using an integrative approach combining morphological and molecular methods.

The ten-day trip was a period of intensive fieldwork and scientific discovery for the students.

Using modern molecular genetic methods, specialists analyzed the samples and obtained the following result: all the animals studied are Caspian gray voles.

In good weather, beavers can be active for ten hours or more, even during the day. On rainy days, they spend more time on land, and in hot weather, they spend more time in the water.