Approx. 631 million mammals and almost 144 million birds in Poland fall prey to cats every year, scientists estimate. They emphasize that the activity of these predators has a negative impact on biodiversity on the national scale, for example on endangered species of birds.
Species previously not found in Europe, including fish, crayfish or squirrel, are among the most dangerous invasive alien species that can threaten the nature in Europe. Most of them come from the tropical zone, they would have little chance of survival in Poland, according to a biologist from the Institute of Nature Conservation of the Polish Academy of Sciences in Kraków.
Some ichthyosaurs - the great predatory marine reptiles that lived in the times of the dinosaurs - had their snouts constantly open. That is how they exhaled the air collected inhaled when they emerged, determined palaeobiologists from the Polish Academy of Sciences. Until now, the breathing of these animals was a scientific mystery.
The Arctic ground squirrel is a rodent that spends most of its life in hibernation. Although it reduces its body temperature by approx. 40°C, it almost does not lose any fat-free mass. Research on its bacterial flora conducted, among others, by a Polish researcher, could help fight malnutrition in humans.
Dr. Tomasz Rewicz from the Department of Invertebrate Zoology and Hydrobiology, University of Lodz, will conduct research on biological diversity of invasive freshwater shrimps from Europe at the University of Guelph, Canada. The trip will be financed with a National Academic Exchange Agency grant.