Shooting Mechanisms in Nature: A Systematic Review
Fig 17
Drying fracture catapult mechanism in the Hura crepitans.
(A) The immature fruit of H. crepitans. (B) The full-grown fruit, consisting of several carpels embracing the seeds. (C) When a critical pressure is reached, the carpels split open from the central axis, discharging the seeds. (D) A separated carpel and launched seeds. Drawings based on schematic drawings in [79]. Scale bar 100 mm.