Critter Corner: How hogfish choose their color

Hogfish, which are common off the coast of Florida, change color to hide from predators.

What's happening: Florida International University (FIU) marine scientist Heather Bracken-Grissom contributed to a study about how they do it, published last week in Nature Communications journal.

Details: Inside certain hogfish cells, pigments either spread out or cluster together to make the fish appear dark or light, per an FIU publication.

• Beneath every color-changing cell in the hogfish is a corresponding photoreceptor providing feedback to make sure the fish changes to the correct color.