Rhinoceros Beetle Diversity

(Image credit: Erin McCullough)Rhinoceros beetles show an amazing diversity in their horns, even within the same species (here, Trypoxlus dichotomus). Females lack horns, but males use them to fight each other.

Horned Beetle

(Image credit: Douglas Emlen)A rhinoceros beetle shows off its antler-like horn.

Rhinoceros Beetle on a Leaf

(Image credit: Douglas Emlen)A male rhinoceros beetle perches on a leaf.

Tree Beetles

(Image credit: Erin McCullough)Rhinoceros beetles gather on a tree. Males defend sap sites from other males, hoping to mate with females attracted by the sap.

Rhino Beetle Battle

(Image credit: Douglas Emlen)Two male rhinoceros beetles lock horns in battle.

Wacky Horn

(Image credit: Tomas1111 | Shutterstock)European rhinoceros beetle, called Oryctes nasicornis in the wild.

Rhinoceros Beetle

(Image credit: zuly, Shutterstock)There are more than 300 species of rhinoceros beetles, representing a wide array of horn diversity.

Rhino Beetle Fight

(Image credit: Photo 999, Shutterstock)Two rhinoceros beetles face off on a tree.

Child's Beetle

(Image credit: Adrov Andriy, Shutterstock)This image of a rhinoceros beetle in a child's hand illustrates the insects' size.

Male Rhino Beetle

(Image credit: RobHamm, Shutterstock)A male rhinoceros beetle photographed in Ecuador.