Exceptionally preserved fossils from the Ediacaran period challenge what scientists thought was possible in sandstone. In the fossil record, creatures without hard shells or skeletons, such as ...

The molecular clock is based on a simple idea: genetic changes happen gradually and predictably over time. By working ...

A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Fossils from Morocco, dated to 773,000 years ago, reveal an early Homo sapiens lineage, shedding light on Africa’s role in ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

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

Small Modular Reactors are pivoting the nuclear industry from custom-built energy cathedrals to factory-built energy ...

Trump vetoes two bipartisan bills, marking first vetoes of second term New images offer closer look at demolition for the White House ballroom Message to Ken Burns: What Lincoln said about our ...

The highly anticipated group selection event begins at 12 p.m. ET on Friday, Dec. 5, from Washington, D.C. The 2026 World Cup Draw is different to previous draws. The 2026 World Cup expands to 48 ...