In the early stage of pregnancy, the dialogue between the developing embryo and the mother is one of the key factors determining the success of the embryo implantation process in the uterus. Scientists from the Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn have discovered another relationship that helps to understand this complicated process.
The areas of present-day south-eastern Poland used to be covered by a shallow sea. But apart from fossil fish, invertebrates and plants, bird remains are also sometimes found. Thanks to these few officially known finds, we know that species related to today's passerines, as well as grouses, hoopoes, hawks and... hummingbirds lived here.
Due to climate change, there are fewer and fewer amphibians in the world. Salamanders are facing extinction - two out of five will die, and the disastrous statistics may be worsened by a new disease emerging in the United States and Europe, says a study conducted by over 100 scientists, including researchers from the University of Łódź.
Scientists from the Alfred Jahn Cold Regions Research Centre of the University of Wrocław (UWr) are investigating places with a high risk of future tsunami waves. Scientists plan to prepare recommendations for local communities on how to mitigate the effects of geohazards connected to climate change.
Scientists have proven that 800-year-old pedunculate oaks can be multiplicated by the in vitro cloning method. Previously, this was only possible for up to 300 years old oaks. Their work will enable the preservation and protection of the genetic resources of valuable specimens growing in Poland.
A Polish-Chinese scientific team has described a new marine reptile that lived about 250 million years ago in what is now China. The discovery sheds new light on the evolution of the aquatic lifestyle of extinct reptiles and confirms the close relationship of turtles with dinosaurs and their relatives.
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.