Aphids may be the only insects that can photosynthesize

Plants, algae, and bacteria have a clear advantage over the animal kingdom when it comes to their powers of photosynthesis. A certain species of sea slug can steal photosynthetic DNA from algae, but animals don't photosynthesize on their own. At least that's what we thought. New evidence has come to life suggesting… » 8/18/12 1:00pm 8/18/12 1:00pm

160 million years ago, ancestors of cuttlefish were already using the…

Researchers have shown that ink sacs from a cephalopod that lived 160-million years ago still contain traces of the pigment melanin. That's an impressive find in its own right, but what really floored the scientists was how familiar these pigments looked. » 5/22/12 9:25am 5/22/12 9:25am

Redheads experience pain differently than the rest of us

It's melanin Monday (not a real thing — but it should be), time to brush up on your knowledge of all things pigment-related! People with fair skin and rosy locks get their distinctive looks from mutations in the gene that codes for melanocortin 1 receptor, a protein that aids in the synthesis of the pigment melanin;… » 3/05/12 7:00am 3/05/12 7:00am