The area that is now Joshua Tree National Park wasn’t always a desert. During the Great Ice Age, also known as the Pleistocene Epoch, there were rivers and lakes as well as Columbian mammoths ...

Acerophagus papayae is a parasitic wasp that has proved to be a successful agent against papaya mealybug in Africa. Mealybug is a highly invasive pest that affects at least 133 economically ...