In 2002, Professor Michel Brunet of the University of Poitiers, France, described a tiny fossil ape skull nicknamed Toumaï as an upright-walking human...
Cicadas are an unusual-looking insect belonging to the order Hemiptera (the true bugs, including bed bugs and aphids). If you live in the eastern United...
The element nitrogen is critical in the living world. It is a basic building block of structural and regulatory proteins, nucleic acids, and chlorophyll...