‘Wavy Dave’ robot crab reveals how males compete in claw-waving contest Phys.org Phys.org - Biotechnology A robot crab has helped scientists understand how male fiddler crabs compete over females.This post was originally published on this site Read More: Ageism in tech: Older adults should be included in the design of new technologies The Conversation Fresh Features How a Toronto Limousine Adds Elegance to Your Wedding Day Community Partners Affiliate Content