Supporting the process of fish reproduction in the event of an ecological disaster, securing the stability of breeding in fish hatcheries and protecting the gene pool - these are the main objectives of fish semen banks, which are being established by scientists from the Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn.

No effort required: just a photo of plastics collected by the river and a photo of the surrounding vegetation. Anyone interested can help scientists create a map of macroplastic pollution of mountain rivers, says the initiator of the campaign, Dr. Maciej Liro from the Institute of Nature Conservation PAS.

A quantum random number generator will enable encryption of satellite and fibre-optic communications. The device straight from the Polish factory is ready for testing at NASK, says Dr. Marek Życzkowski from the Military University of Technology.

Due to climate change, there will be fewer chanterelles and boletes in Polish forests, as these mushrooms are associated with trees from the pine family, scientists predict. Penny bun pickings may also be smaller. Mushroom pickers will instead pick summer cep, for example.

Recent excavations confirm that between the 10th and 13th centuries, a settlement complex developed intensively in Czermno, which was the main centre of the so-called Cherven Cities, says research leader Dr. Tomasz Dzieńkowski from the Institute of Archaeology of the Maria Curie-Skłodowska University in Lublin.

Broad-spectrum antibiotics are present in the soil near the poultry farm, found scientists from the University of Warmia and Mazury in Olsztyn. Drugs were also detected in groundwater, and antibiotics in drinking water. The phosphorus content was two and a half times higher than the average for soils in Poland.

In warmer climates, in the course of evolution birds lengthen their legs and beaks and, in a separate process, reduce body size. Scientists from Poland and Australia investigated the interdependencies between these mechanisms on 99.7% species of birds.

When water striders escape from predators, they bounce off the water surface in a quick jump. Larger and heavier species must use a new mechanism to escape successfully. Scientists have just found out what it is.

In addition to eating hunted deer and wild boars, wolves also feed on the carcasses of dead farm animals, illegally dumped on the edges of fields, into swamps and forests, which poses an epidemiological threat, shows research conducted with telemetry collars.