Imagine the thrill of peering into deep time, only to find a fossil within a fossil — a silent, stone-etched echo of life ...

The study, published online today in Science, is the first to map the distribution of trace metals in fossils as a way to reconstruct pigment patterns. The findings suggest that pigment chemistry may ...

Scientists at the University of Manchester used a combination of X-ray spectroscopy techniques to examine three key specimens of Archaeoptryx fossils and found trace-metals that have been shown to be ...

What cells and specialized organs make such crypsis ... and octopuses, which contain pigment sacs that become more visible as small radial muscles pull the sac open making the pigment expand ...