3D rendering of the tiktaalik, an extinct walking fish. Dotted Yeti/Shutterstock Chris Organ, University of Reading When you think about human evolution, there’s a good chance you’re imagining chimpanzees exploring ancient forests or early humans daubing woolly mammoths on to cave walls. But we humans, along with bears, lizards, hummingbirds and Tyrannosaurus rex, are actually […]