As their name suggests, dung beetles feed partly or exclusively on feces. Many dung beetles roll manure into balls—sometimes as large as apples—which they then use as food sources and brooding chambers. They can eat more than their own weight in 24 hours and are considered helpful because they convert manure into substances usable by other organisms. According to estimates, how many millions of dollars do dung beetles save the US cattle industry each year by burying above-ground livestock feces? Discuss
Source: The Free Dictionary