10 of the Biggest Bugs on Earth
Stag Beetle
The three-inch-long male stag beetle may be most easily recognized by its spiky front antlers -- also known as mandibles -- which are a key part of courtship rituals and wrestling matches; you'd have more to fear from the slightly smaller females, though, which don't have the giant spikes but do have a more fearsome bite.
The beetles thrive on dead wood, but its numbers appear to be dwindling: Researchers point to the long maturation time -- 4 years from larvae to adult -- and "the over-zealous tidying of dead timber and stumps," according to ARKive.
Read More: 7 Weird Endangered Species Only a Mother Could Love
Photo: Wikimedia Commons
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