Author: Donald R. Prothero

The first vertebrate animals appear in the fossil record over 520 million years ago. These lineages diversified and eventually crept ashore leading...

Throughout our history, humans have been captivated by mythic beasts and legendary creatures. Tales of Bigfoot, the Yeti, and the Loch Ness monster...

California has some of the most distinctive and unique geology in the United States. It is the only state with all three types of plate boundaries,...

Throughout our history, humans have been captivated by mythic beasts and legendary creatures. Tales of Bigfoot, the Yeti, and the Loch Ness monster...

The battles over evolution, climate change, childhood vaccinations, and the causes of AIDS, alternative medicine, oil shortages, population growth,...

California has some of the most distinctive and unique geology in the United States. It is the only state with all three types of plate boundaries,...

California has some of the most distinctive and unique geology in the United States. It is the only state with all three types of plate boundaries,...

Over 4.5 billion years, Earths climate has transformed tremendously. Before our more temperate recent past, the planet swung from one extreme to an...

California has some of the most distinctive and unique geology in the United States. It is the only state with all three types of plate boundaries,...