<p>An unassuming fossilized slab in the basement of a museum in Brazil turned out to be 110-million-year-old dinosaur vomit, and inside that vomit were the bones of two strange, seagull-sized pterosaurs.</p><p><br></p><p>PLUS:</p><ul><li>Loss of fresh groundwater is now the leading driver of sea level rise</li><li>How doubting your self-doubt makes you doubt less</li><li>A huge black hole in a peculiar galaxy may date from the universe’s earliest moments&nbsp;</li><li>Shining a light on where viruses hide out in our bodies, and how they make us sick</li></ul>