skeleton

To examine how acidity has evolved over time, the researchers analyzed historic coral samples and measured boron isotope signatures preserved in their skeletons.

In this process, the outer soft tissues of the animal were preserved as a delicate clay coating that settled over the skeleton after burial, forming a mask less than 1/100th of an inch thick.

Because sharks possess skeletons made of cartilage, their bodies rarely fossilize.

The bio-built skeletons of corals, for example, have proved to be “a more successful template” for bone growth than any synthetic material.

The artwork depicts Kahlo sleeping in a bed that appears to float through the sky, beneath a skeleton with its legs wrapped in sticks of dynamite.