NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about "scuba-diving" lizards, a trick to turn a mouse's skin transparent and whether finger counting helps kids' math skills.

Counting on fingers in primary school is not a sign of weakness but an important tool for learning mathematics, according to a long-term study by researchers in Switzerland published in Developmental ...

Many people around the world learn to count on their fingers, but we don't all do it in the same way. Could there be a better method? How would you count to 10 on your fingers? Do you start with the ...