Using their own laser imaging technology, scientists have determined the lifestyle of a special hatchling bird by revealing the previously unknown feathering preserved in the fossil specimen found in the ~125 million-year-old Early Cretaceous fossil beds of Los Hoyas, Spain.
Seychelles warblers live and breed in family groups on the tiny island of Cousin. In each group, a dominant female and male reproduce. When helpers assist the with incubation and feeding of chicks, the dominant female breeders age more slowly and live longer, a study by biologists shows. The results indicate how cooperative breeding -- […]
Scientists analyzed data spanning more than four decades and concluded that the impact of lake trout in Yellowstone Lake -- in particular, the decline of native cutthroat trout -- has cascaded across the lake, its tributaries and the surrounding ecosystem.