Charles Darwin worried that the fossil record looked strangely abrupt, with complex animals appearing in a geological instant ...

The Moroccan fossils now provide tangible evidence from this mysterious transitional period. What makes these fossils particularly significant is the precision with which they can be dated. The ...

The oldest fossilized remains of complex animals appear suddenly in the fossil record, and as if from nowhere, in rocks that ...

These radioactive elements decay at known rates, effectively acting as a built-in clock that reveals precisely when the eggs were buried millions of years ago. This natural timekeeping mechanism has ...