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Violent Mating Habits of Olorotitan: Dinosaurs with Broken Bones

1/17/2026

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Summary

Story summary

Paleontologists report that the duck-billed dinosaur Olorotitan engaged in violent mating practices that caused broken bones.
A study published in iScience found fractures were linked to mating, not fights or herd movement.
Dinosaurs possessed a cloaca for reproduction, requiring precise alignment that could cause severe trauma due to their size.
Despite the risks, they showed complex courtship displays, evidenced by scratches in ancient rock, clarifying their mating behaviors.

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Story summary

Paleontologists report that the duck-billed dinosaur Olorotitan engaged in violent mating practices that caused broken bones.
A study published in iScience found fractures were linked to mating, not fights or herd movement.
Dinosaurs possessed a cloaca for reproduction, requiring precise alignment that could cause severe trauma due to their size.
Despite the risks, they showed complex courtship displays, evidenced by scratches in ancient rock, clarifying their mating behaviors.