Browsing: frog

Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic…

Epibatidine, the dart frog toxin Britain says was used to kill Alexei Navalny, is about 100 times more potent than morphine.The extremely toxic, nicotine-like substance was…

This week’s best wildlife photographs from around the world Continue reading…