The opah is equipped with specialized blood vessels that carry warm blood to its gills to rewarm the blood that cools as the fish breathes and absorbs oxygen from the water.

Incidentally, that the gills of fish are bright red is because there are many 'capillary vessels' collected there, the same as for lungs.

When Novak Djokovic was doing the on-court post-match interview after defeating Gilles Simon in an error-ridden five-setter, a fan shouted from the stands, "No more drop shots!" With a grin, Djokovic replied, "I hate to say that, but you're absolutely right."

Gilles crossed the dunes.

Gill usually acts most efficiently.

Gilles looks a sorry sight! What did he do to himself?

Dolphins don't have gills.

Carrie Sloane dared Ruby Gillis to climb to a certain point in the huge old willow tree before the front doo.

He will send Gilles up to the room.

I ate until I couldn't eat any more. I was stuffed to the gills.