A new analysis of European archaeological sites containing large numbers of dead mammoths and dwellings built with mammoth bones has led to a new interpretation of these sites -- that their abrupt appearance may have been due to early modern humans working with the earliest domesticated dogs to kill the now-extinct mammoth.
Efforts to eradicate invasive species increasingly occur side by side with programs focused on recovery of endangered ones. But what should resource managers do when the eradication of an invasive species threatens an endangered species? In a new study, scientists examine that conundrum now taking place in the San Francisco Bay.
Using computer vision and machine learning techniques, researchers have developed Birdsnap, a free new iPhone app that's an electronic field guide featuring 500 of the most common North American bird species. The app enables users to identify bird species through uploaded photos, and accompanies a comprehensive website.