How the devil ray got its horns

If you ever find yourself staring down a manta ray, you'll probably notice two things right away: its massive fins and the two fleshy growths curling out of its head that give it the nickname 'devil ray.' A new study shows that these two very different features have the same origin -- a discovery that reflects an important lesson for understanding the diversity of life.

from Plants & Animals News -- ScienceDaily https://ift.tt/2QpXTHT
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