Cannabis is one of the most contentious and widely used drug plants in the world today. However, its history of use and the role that it played among peoples in the past is poorly understood. Historians and archaeologists have debated about ancient drug use for... click to read more

Sixty-eight million years ago, a Tyrannosaurus rex died in a small river in what is now South Dakota, USA. Along with "Sue", the T. rex's skeleton, many other animals had pieces of their skeleton preserved in the same section of the river. The most recently... click to read more

Denisova Cave is an archaeological site in southern Siberia. Russian archaeologists have excavated it for over 30 years. It is the only site in the world we know to have been occupied by three different kinds of humans: Denisovans, Neanderthals, and us. Denisova came to... click to read more

Safeguarding the earth's biodiversity has become an urgent priority in the current era of unprecedented environmental and ecosystem degradation. Scientists have been monitoring the loss of species, populations, and their genetic diversity. However, they gave comparatively little attention to the influence of human growth and... click to read more

When we sweat, our pores excrete a compound called lactic acid. Since the 1960s, scientists have known that lactic acid can elicit attraction in mosquitoes, but how they sense this compound has been elusive until now. Mosquitoes are hard-wired for seeking a vertebrate host to... click to read more