Two male Greater Stag Beetles (Lucanus cervus) challenging each other on old oak tree stump in Romania.

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Size: 5043px × 3525px
Photo credit: © BOB GIBBONS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aggression, aggressive, animal, animals, attack, beetle, beetles, behaviour, black, brown, cervus, close, close-, combat, defence, duo, eastern, entomology, europe, european, fauna, fight, fighting, greater, insect, insecta, insects, invertebrate, invertebrates, lucanus, male, males, romania, stag, stump, trees, wildlife, zoological, zoology