A stunning discovery of 21 ancient footprints at Lake Turkana, Kenya, estimated to be 1.43 million years old, raises questions about known hominins and highlights the diversity of early human relatives. A recent study explores the implications of their size and social behavior, suggesting a complex evolutionary history.

A set of footprints that date back more than 1.4 million years reveals our ancient relatives may have travelled in all-male gangs.

July 28 : Footprints left on a muddy lakeshore in northern Kenya around 1.43 million years ago are providing new insight into the size and behavior of a species in the human…