An iceplant, from a region of high diversity in South Africa, is overtopping and killing a native shrub on the New Zealand coast, a region with far less diversity. Plant lines that have had to struggle against robust competition are strong invaders in areas where native plants have had an easier time. Credit: Jason Fridley […]

Pe zi ce trece, bicicleta castiga tot mai multi adepti, insa, indiferent de varsta, aceasta trebuie utilizata corect, in spiritul conduitei preventive. Ca urmare a lipsei de precautie, tot mai multi biciclisti cad victime ale accidentelor de circulatie. Nesemnalizarea si neasigurarea inainte de efectuarea schimbarii directiei de mers, in special spre stanga si la plecarea […]