Adult: one molt per year, but fresh fall adults look very different from summer birds. On freshly molted birds, black plumage has white spots all over; by winter, spots start to disappear ...
Sep. 6, 2024 — Some species of pterosaurs flew by flapping their wings while others soared like vultures, demonstrates a new study. Findings include a new pterosaur with a five-meter wingspan ...
The bear’s once white coat was molted and dirty. His once robust frame was skin and bones. Every step that he took was pained and slow. We could tell he was sick or injured and that he was starving.