The research breakthroughs for April are Alolan Marowak, Mawile, Druddigon, Jangmo-o, Charcadet, and Frigibax. They will be rewarded randomly, so you can’t predict which Pokemon you’ll get.

Research on cannabis was hotting up 50 years ago, and accessible lectures on the physics of matter from Nobel laureate William Bragg, in this week’s dip into Nature’s archive.