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A new paper suggests an ancient creature’s odd anatomical feature may be the earliest known example of specialized sexual combat in the animal kingdom. By Asher Elbein Walliserops trifurcatus wasn’t ...

Fighting for mates may be a behaviour that dates back over 400 million years. A unique specimen suggests that male Walliserops trilobites fought each other using trident-like structures to win the ...

A species of ancient trilobites grew big forks on their heads to fight their opponents and impress potential mates, in what scientists say could be the earliest known example of ritualized combat.

From a deer’s elaborate branching antlers to the fiddler crab’s oversize claw, the animal kingdom is full of flashy features used in combat to help secure a mate. A team of researchers announced last ...

Extinct trilobites called Walliserops trifurcatus may have been among the first creatures on Earth to engage in sexual combat, a new study finds. Public Domain At the bottom of the ocean 400 million ...

Trident-like horns on the heads of some trilobites were probably used in fights over mates. This hypothesised behaviour is the oldest example of sexual combat that has been identified in the fossil ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...