terça-feira, 18 de novembro de 2008

Biology: Understanding (my) Life

Many dung beetles, known as rollers, are noted for rolling dung into spherical balls, which are used as a food source or brooding chambers. Other dung beetles, known as tunnellers, bury the dung wherever they find it. A third group, the dwellers, neither roll nor burrow: they simply live in manure.

After capturing the dung, a dung beetle will roll it, following a straight line despite all obstacles.

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