Oceans are salty because rivers carry minerals like sodium and chloride from rocks on land, gradually adding salt over ...

The flu is a contagious viral infection of the respiratory system that affects the nose, throat and lungs. It is caused by influenza viruses. Symptoms of mild flu infections can resemble those of the ...

Dinosaurs were first discovered in the 18th century, and as our tools have progressed, so too has our knowledge of the ...

Over billions of years, the drive to survive, reproduce, and outcompete rivals has pushed plants and animals to incredible extremes. From strange to unbelievable, every wild behavior has deep ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...