Natural History, the study of natural objects and events. The term was once applied to the branch of knowledge that includes the biological and physical sciences. In the first century A.D., Pliny the Elder, a Roman writer, summarized most of the existing knowledge of nature in his Historia Naturalis (Natural History). Until the late 19th century many scientific works, especially in the fields of botany and zoology, were called natural histories.
Cucumber, a trailing vine of the gourd family. Its green fruit -- usually long and warty with crisp, white flesh -- is sliced and eaten raw in salads, or pickled with dill or other spices and eaten as a relish.
As the human population soars, our ability to feed all those hungry mouths can't keep pace. How did an English economist by the name of Thomas Malthus wind up thinking about this very issue in the 19th century, and what's his connection to Darwin?