ancient species of wading bird

WATER WADER  An ancient species of wading bird (illustrated) that lived about 130 million years ago is the oldest known avian relative of modern birds.

micrograph of mouse's optic nerve

NERVE PROTECTORS  The glowing cells in this micrograph of a mouse’s optic nerve help shield electrical signals passing between eyes and brain. The Brainbow technique allows scientists to visualize how the cells work together.

man holding coco-de-mer nut

HUGE SEEDS  The iconic shape of a coco-de-mer nut that intrigues a traveler (shown) won’t show up on a tree. It’s evident only once the outer green husk is stripped off.

A 60-minute exposure of Mount Teide in the Canary Islands

AS THE WORLD TURNS  A 60-minute exposure of Mount Teide in the Canary Islands shows star trails, a product of Earth’s spin. Tiny deviations in Earth’s rotation rate could account for difficulties in measuring Newton’s gravitational constant, a new study suggests.



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