Overview
- The peer-reviewed paper published July 8, 2026 in Science Advances examined 143 puncture structures from about 133 species across plants and animals.
- Researchers found a clear trade-off: pointier, flatter tools puncture more efficiently but are more prone to bending or breaking, while rounder, stouter tools resist buckling but pierce less effectively.
- The analysis shows repeated convergence where unrelated species evolve similar shapes when facing the same puncture mechanics, for example shark-like teeth and triangular snail love darts.
- A small group of structures perform well on both axes, with examples including scorpion stingers, mantis shrimp appendages, dracula ant mandibles, and some tusks and beaks.
- The study builds on roughly a decade of lab work and suggests clear paths for biomimetic design by mapping which shapes optimize puncture or sturdiness for different tasks.