Hate crimes are on the rise in the US. Professor Brian Levin, who studies hate and extremism, cites “nationalism that is taking place with respect to fear of demographic change,” coupled up with “a very splintered and polarized sociopolitical landscape and the fragments of social media” | CNN Replay

High-speed cameras reveal tiny insects employing a physical phenomenon, never-before seen in a natural system to avoid drowning in their own urine | Nature