Scroll on for the best 15 mermaid nails that range from subtle shimmer to full siren-core. It's the ultimate way to channel ...

Flashy iridescent shells might not seem like the best evolutionary strategy for bugs trying to avoid hungry birds. But in recent years, biologists have shown that iridescence—lustrous shifts in ...

Scientists on a deep sea expedition spotted an iridescent species of polychaete on the ocean floor off the coast of Chile. It's one of the mission's many biodiverse sightings.