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.
Road salt used in winter has a negative impact on zooplankton, preventing its spring reproduction success, shows Dr. Sebastian Szklarek, an ecohydrologist from the Polish Academy of Sciences. Less zooplankton affects the phytoplankton balance and thus, among other things, a larger bloom of cyanobacteria.
Four plesiosaur teeth from about 148 million years ago have been discovered by scientists from the Jagiellonian University and the Polish Academy of Sciences in the Owadów-Brzezinki quarry (near Sławno, Łódź province). According to the researchers, these are the first fossils of the aquatic reptiles from this palaeontological site.
Two endemic species of aphids have been discovered in Svalbard. Some of them have a lot of body fat, which could indicate that the body is protected against low temperatures. A scientist from the University of Silesia investigates whether this is really the case and whether it is a repeatable trait.