At the end of World War II, the Japanese Unit 731 planned a biological attack on the United States. Tokyo had the ...

Turkey vultures deter predators by projectile vomiting gastric juices as acidic as battery acid that burns their attacker's ...

Nineteen hippos have died in Zimbabwe in the past three months most likely due to a lack of adequate food because of severe ...

With rare exceptions like the oral polio vaccine and intranasal vaccines against influenza, the majority of immunizations are ...

As the Arctic’s permafrost thaws, deadly microbes are being released, causing problems for humans and animals.