The claws of coconut crabs have the strongest pinching force of any crustacean, according to a study.
Coconut crabs are the largest terrestrial crustacean and are remarkably strong, lifting up to 28 kilograms. The crabs use their claws to fight and defend themselves, and to eat coconuts and other foods with hard exteriors. While decapods exert the greatest pinching force relative to their mass, the pinching force of coconut crabs was unknown. The researchers measured the claw pinching force of 29 wild coconut crabs.
The researchers found that pinching force increased with body mass.