Cities are bursting with life, both human and animal. The smallest of them—insects, spiders and ants—are easily overlooked, but their presence—or absence—in cities has wide-reaching effects. Scientists in Austria have published a study in Frontiers in Ecology and Evolution, which found a correlation between the presence of arthropods—invertebrate animals with an exoskeleton; among them are bees, insects, and spiders—and level of urbanization. Read More