Science Nation - Creeping Crawling Caterpillars

submitted by: nsf
Roly-Poly role models for future robots Sometimes it pays to be spineless. Take the caterpillar--it can squirm and crawl in ways that would make a contortionist green with envy. One such animal, a green tobacco hornworm, dangles off Barry Trimmer's finger, half of its body squirming and bending in mid-air. What fascinates Trimmer, a Tufts University biology professor, is how caterpillars can move in ways animals with spines and skeletons can't. For this and more Science Nation, go to...