A Yale team spent the last part of November in the Galapagos gathering dozens of giant tortoises that carry the DNA of extinct species that used to roam two islands in the famous chain. (more…)
Save Threatened Species by Giving Them Treated Cotton for Nests
When University of Utah biologists set out cotton balls treated with a mild pesticide, wild finches in the Galapagos Islands used the cotton to help build their nests, killing parasitic fly maggots to protect baby birds. The researchers say the self-fumigation method may help endangered birds and even some mammals.
“We are trying to help birds help themselves,” says biology professor Dale Clayton, senior author of a study outlining the new technique. The findings were published online May 5, 2014, in the journal Current Biology. (more…)
As the world’s leading authority on beads manufactured from shells by California’s Chumash Indians, UCLA archaeologist Jeanne Arnold was stumped by a series of anomalous artifacts excavated at former settlements on the Channel Islands.
Pierced with more than one hole, often at unconventional angles or too close to the edges, the oddly configured multi-hole beads differ considerably from the smooth, round, precisely drilled beauties that served as currency among the Chumash prior to the arrival of Europeans in Southern California. (more…)
