Little Beetle, Big Horns
Why do dung beetles have horns? Biologists sniff out some answers.
By Roberta Kwok, 00:00 AM May 15, 2007
A dung beetle is squirming in my hand. It's only the size of my pinky fingernail, but I can feel its spiny legs poking my skin.
I try not to think about where those legs have been. Why? Because I know that Armin Moczek, a biologist at Indiana University at Bloomington, just dug up the beetle from a container of dirt and cow manure.
Roberta Kwok holds dung beetles in her hands.
Moczek studies beetles in his lab, and he takes good care of his bugs. "We go out every couple of m...
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