Learn how living things make blue, and why this beautiful hue is so rare in nature. Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure.

Is the color blue rare in nature? Yes and no. This segment originally aired in December 2023. It aired again in March 2025.

The globally endangered large blue butterfly was introduced to Rodborough Common in Gloucestershire last year. Now, more than ever, we need support so that we can continue with our vital nature ...

Finally, some good news! Conservationists have successfully reintroduced previously extinct large blue butterflies to the UK, with the creatures populating parts of the country for the first time ...

Azulene pigments are responsible for the sky blue mushroom's bold hue. The fungus is blue all over, with a red tint on the gills caused by its spores. Researchers are still examining how and why the ...

Bluebirds and blue jays don't have blue pigment in their feathers. It's the way light refracts off their feathers that make them appear blue to us. UNH lays off 35 as budget, financial woes mount ...

The Fender’s blue butterfly has fluttered away from the brink of extinction. The species, once so rare it was thought to be extinct, is no longer considered endangered, according to a January 11 ...

Finally, some good news! Conservationists have successfully reintroduced previously extinct large blue butterflies to the UK, with the creatures populating parts of the country for the first time ...