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Stories
BiologyAncient footprints show kids played in the mud 10,000 years ago
A trackway of tiny prints suggests children splashed and ran while adults worked nearby.

BirdsData Dive: Tracking the rise of backyard bird feeders
Survey data show which birds visit feeders most often.
Gut & KidneyYour gut microbes may affect your mood
Trillions of tiny helpers talk to your brain in unexpected ways.
Eyes & ENTKids who play outside more may see better
Daylight appears to protect growing eyes from nearsightedness.
Earth & SpaceThe moon is slowly drifting away from Earth
About four centimeters a year, and here’s why.
Earth & SpaceMeet the scientist who studies volcanoes from space
Satellites help her predict eruptions before they happen.
Skin & HairThis sunscreen is made from algae
Natural pigments block ultraviolet light without harming reefs.
BirdsMeet a scientist who studies penguin poop from space
Brown stains on ice reveal where colonies live.
GeneticsYour DNA is 99.9 percent the same as everyone else’s
Tiny differences make each person unique.

Earth & SpaceMoon dust could be turned into building bricks
Astronauts might one day construct bases from local soil.