Life, Dinosaurs & Time

Life first appeared in Earth's primordial seas some 3.6 billion years ago and evolved into a wide diversity of marine and terrestrial cr...

Eastern White Pines

It is during the winter, when the deciduous trees are bare, that we pay most attention to the conifers. But, since I park by pickup beneath...

Evolution of the Sonoran Desert

The Sonoran Desert of the Southwest U.S. and Northwest Mexico is a product of its latitude, the global climate and the regional topography. ...

Madagascar and its Primates

As Pangea continued to break apart, Madagascar split from Africa, some 160 million years ago. Drifting to the south, it merged with the rem...

The Voice of Winter

Winter is the quiet season. Compared with the rest of the year, there are relatively few natural sounds that greet us on our excursions thr...

The Benefits of Aging

Aging has its disadvantages. Our physical strength and stamina tend to deteriorate, we are more prone to a variety of illnesses and, for so...

December

A northwest wind developed yesterday afternoon, behind the latest cold front, and, overnight, ushered in the coldest air and lowest wind chi...