Ancient Hopi Villages Built with Driftwood

Many cultures have relied on driftwood as a resource, for building homes and fires, especially where other wood resources are scarce. But archaeologists have not investigated the possible extent of driftwood use by ancient cultures of the southwestern United States, until now. In a recent article in the journal Kiva, researchers report on the use of driftwood at Homol’ovi, a cluster of 14th-century Hopi villages along the Little Colorado River, near present-day Winslow, Arizona. Their findings not only document the first known reliance on driftwood by peoples of the Southwest, but point to many other implications for the archaeological record of the villages.

Researchers ID new mammal down under

In the current crisis of global biodiversity loss, the discovery of new species is a welcome addition. But the recent finding that the mountain brushtail possum, an arboreal marsupial mammal of Australian wet forests, is actually made up of two species also poses new conservation challenges. The new species is proposed in an article in the latest Australian Journal of Zoology (Volume 50, Issue 4), authored by Earthwatch-supported biologist Dr. David Lindenmayer (Australian National University) and colleagues. “Geographic dimorphism in the Mountain Brushtail Possum (Trichosurus caninus) – the case for a new species,” describes how the northern and southern populations of the mountain brushtail possum are both morphologically and genetically distinct.