The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds.

Ammolite comes from the fossilized shells of extinct squidlike critters called ammonites. Scientists knew the secret to the fossils’ flamboyant appearance lay somewhere in their layers of nacre, or ...

The earrings are only a couple of inches long, but the masterfully carved salmon look like they’ve leaped from the water to whisper in the wearer’s ear. Their glowing red hues and iridescent ...

Scientists have found the genes responsible for the spectacular kaleidoscope of shapes, patterns and colours that are the hallmark of tropical abalone, edible marine snails found in Australia's Great ...