Human teeth evolved 400 million years ago in a ‘strange armoured fish’
Human teeth ‘first evolved 400 million years ago’ in a bizarre armoured fish, according to new X-ray analysis of a fossil. Palaeontologists have used the European Synchrotron Radiation Facility (ESRF), the strongest X-ray source in the world, to ‘digitally dissect’ the primitive jawed fish. The teeth, belonging to the extinct ‘acanthothoracid’ fish, were discovered near … Read more