Tiny sea snail 'swims like a bee'

A tiny species of sea snail "flies" underwater using movements just like winged insects, according to a study.

US scientists observed the so-called sea butterfly - actually an aquatic snail - using high-speed video and flow-tracking systems.
The 3mm critter flaps its wing structures, which grow where a snail's foot would normally be, in a characteristic figure-of-eight pattern.
It also uses some of the vortex-making tricks that keep insects in the air.
"It looks like it's flying, like a very small insect," said Dr David Murphy, a mechanical engineer at Johns Hopkins University.
The study, published in the Journal of Experimental Biology, was part of his PhD research while studying at Georgia Tech.-read more-http://www.bbc.co.uk/news/science-environment-35586935