Dave Mosher

First "night-shining" clouds of 2007 seen from the ground.

Archaeologists discover ancient source of Egyptian gold on the Nile River.

Paleontologists dig up fossils of an ancient gliding reptile.

Leading geneticist asks scientists to create stem cells with animal eggs.

Brain's hippocampus may play big role in causing bouts of deja vu.

Teachers spend 24 percent of their working time talking up a storm.

Acousticians propose ways to reduce noise pollution in the wild.

Historic stone walls soaking up discoloring motor fuels, study shows.

Forensic tactics show sneaky fisher weasel populations are healthy.

Watch out: Newly discovered species bite humans too.

Pod of 30 threatened bottlenose dolphins seen in the English Channel.

Study finds hair follicles of mice can regrow after skin is wounded.

Hooded seals are hard to find, but even harder to tell apart.

Bacteria in L.A.’s La Brae tar pits have sweet tooth for oil.

Rapid flip-flops in climate pushed Neanderthals to extinction.