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 animal kingdom. Whereas human tongues are pink and typically just over 3 inches (7.6 centimeters) long, the anteater has a 2-foot-long (60 cm) tongue and the blue-tongued skink has a brilliant blue one.
Here's a look at 20 amazing animal tongues and the science behind them.
