Rosette-nosed chameleons (Rhampholeon spinosus) may look like the slower-moving dinosaurs from The Flintstones, but there is nothing sluggish about their tongues. This old-world lizard holds the ...

Don't underestimate the tongue, a muscular organ that humans use for licking, breathing, tasting, swallowing and speaking. But this organ varies widely in color, shape, length and function across the ...