In recent decades, dieback of spruce stands has been observed in many regions of Poland. Some species of insects that feed on this tree might disappear with the spruce. That was the case during the climate change during the last ice age, new research shows.
Underwater, no one can hear you scream. But the sounds grey seals make can be heard. Dr. Łukasz Nowak at the University of Twente in the Netherlands has now carried out research into what acoustic phenomena allow seals to make sounds both above and under the water.
Despite the coronavirus pandemic reducing reluctance to use IT tools, the risk of a cyberattack has not decreased and if someone cares about security they should share knowledge on their own terms, say experts from the Military University of Technology.