Scientists discover that octopodes* “walk” away from predators underwater on two tentacles. Just on the evening news, and here:
http://story.news.yahoo.com/news?tmpl=story&cid=514&e=7&u=/ap/20050324/ap_on_sc/walking_octopuses
*The proper plural of octopus, and itself the topic of more than one thread here at the SDMB. Please don’t start another one.