Beachgoers in San Diego may have spotted some glistening, purple shells reminiscent of small gemstones in the sand recently.

Animals with blue eyes are a rare occurrence in nature due to being linked to recessive genetics, mutations, and specific genes. Despite that, many species still have beautifully rich blue eyes.

Look for this blue, red and purple bird in the southwestern states and in Mexico. Learn how to identify a colorful painted bunting. Violet-crowned Hummingbird ...

Something small, shiny and electric blue is catching beachgoers' eyes along the Texas Gulf Coast .