We have already noticed that the limbs were eaten, possibly by sparrows or small mammals, but the trunk and other parts of the head are uniquely preserved.' In images of today's necropsy ...

Fossils of 444 million-year-old creatures whose bodies were preserved "inside-out" have been discovered in South Africa.

The severed head of a medusa. Cut from the beast at the height of its strength, its petrifying glare is nigh as potent as if it yet lived. 5000 ...

By determining the temperatures, pH or nutrient concentrations favoured today by particular species of chironomids we are able to quantify past environmental conditions from the preserved head ...