Examples of how "Robopteryx" startles grasshoppers to flee. 12x slowed down. (VIDEO)

Laboratory of Behavioral Ecology and Evolution at Seoul National University

Caption

This movie illustreates three different ways in which dinosaurs with proto-wings might have flushed their prey by visual displays to subsequently pursue them. First, the grasshopper jumps/flies away in response to expanding Robotperyx's forelimbs with protowings. Second, the grasshopper jumps/flies away in response to folding of forelimbs with protowings. Third, grasshopper escapes in response to upward movements of tail.

Credit

Credits: Movie by Jinseok Park, Minyoung Son, Jeongyeol Park, SangYun Bang, Jungmoon Ha, Hyungpil Moon, Yuong‑Nam Lee, Sang‑im Lee, Piotr G. Jablonski. Fragments of supplementary movie to the paper "Escape behaviors in prey and the evolution of pennaceous plumage in dinosaurs" by the above Authors in Scientific Reports: https://www.nature.com/articles/s41598-023-50225-x

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