Red deer in Poland are not vectors or reservoirs of the SARS-CoV-2 virus, which means that they do not participate in spreading it to subsequent organisms. However, taking into account different reports from North America, it is necessary to monitor the wild population in Poland.

Light from industrial greenhouses changes the daily vocal behaviour of forest birds nesting nearby, says research published in the Journal of Ornithology.

Storks flying from Poland to Africa prefer to sleep on buildings and trees, and when those are not available they spend the night on the ground, according to data from 90 transmitters on birds during their first migration.

A Scottish fossil described in the journal Nature by a team led by a Polish scientist has become a source of information about the early evolution of lizards at the era of dinosaurs.

Brittle stars, animals with five-segment radial (pentaradial) symmetry, lived millions of years ago in the territory of present-day Poland. They survived, although today they can only be found in high salinity waters. Fossil species of these agile echinoderms found in Kujawy and the Krakow-Częstochowa Upland have been described by scientists from Warsaw.

Algae and cyanobacteria in the seas secrete mucous polymer substances that can locally change the properties of sea water, turning it into a non-Newtonian fluid. Many parameters change in this fluid, including the physics of particles falling to the bottom.

Roe deer, not red deer, is the main source of food for wolves in Roztocze and the Solska Forest, according to research by Polish scientists. The domination of roe deer in the diet of these predators has persisted for two decades. The wild boar currently has the second place in wolves' menu.

Two genes are responsible for processing carotenoids in birds and give the red colour to their plumage. Carotenoids are also found in photosensitive eye structures and affect seeing, according to the findings of the international team of scientists including a Polish researcher.

Photos posted on social media by nature lovers provide scientists with valuable information about the impact of climate change on flowering, Polish researchers and colleagues from other countries have found.