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...

SDSU Geological Sciences Webinar - Stephen T. Hasiotis

submitted by: tcarrasc
Ichnology for the 21st Century: Understanding the differences between continental and marine trace fossils, with implications to the diversity, distribution, and evolution of soil biota ; Department of Geological Sciences, San Diego State University, Seminar Series ; The study of ichnology has come a long way since its inception and it continues to evolve. In particular, progress is being made in understanding the implications of trace fossils in the continental realm and how they can be...