Some fish are healthier than others. The healthiest fish to eat are high in nutrients and low in contaminants.
What's scaly, striped and breathes underwater like a scuba diver? Water anoles! These lizards can form a bubble over their ...
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.