<img src="https://www.washingtonpost.com/wp-apps/imrs.php?src=https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/VXU63RAEG4CE57ERWCQQMG3PEE.jpg&w=1024" /><br>Robots benefitted from advances in artificial intelligence, soft gels and tinier electronic sensors.