However, the "big brain—long childhood" hypothesis may need to be revised, as shown by an international team of researchers in the journal Nature ... so we have to rely on indirect information. Teeth ...

Few questions have captivated humankind more than the origin of life on Earth. How did the first living cells come to exist? How did these early protocells develop the structural membranes necessary ...

Putting together the puzzle of human evolution sometimes comes down to about 32 pieces–our teeth. Several fossil teeth dating ...