For those with interest in Dinosaurs or evolution:
http://www.cell.com/current-biology/fulltext/S0960-9822(16)31193-9
http://www.cell.com/current-biology/fulltext/S0960-9822(16)31193-9
Quote:
Here we describe the feathered tail of a non-avialan theropod preserved in mid-Cretaceous (99 Ma) amber from Kachin State, Myanmar [17], with plumage structure that directly informs the evolutionary developmental pathway of feathers. This specimen provides an opportunity to document pristine feathers in direct association with a putative juvenile coelurosaur, preserving fine morphological details, including the spatial arrangement of follicles and feathers on the body, and micrometer-scale features of the plumage. Many feathers exhibit a short, slender rachis with alternating barbs and a uniform series of contiguous barbules, supporting the developmental hypothesis that barbs already possessed barbules when they fused to form the rachis [19]. Beneath the feathers, carbonized soft tissues offer a glimpse of preservational potential and history for the inclusion; abundant Fe2+ suggests that vestiges of primary hemoglobin and ferritin remain trapped within the tail.