Ancient coral fossils from the remote Seychelles islands have unveiled a dramatic warning for our future—sea levels can rise in sudden, sharp bursts even when global temperatures stay steady.

The mineral chalcedony is a microcrystalline type of quartz which replaces the original calcium carbonate of the coral and forms into agate. Grains of sand and pieces of the original calcium ...

Paleontologists studying insects trapped in amber from 99 million years ago have made a remarkable discovery: an ant and a fly with parasitic fungi bursting from their bodies.