News tagged with appendages

How did we get four limbs? Because we have a belly

All of us backboned animals – at least the ones who also have jaws – have four fins or limbs, one pair in front and one pair behind. These have been modified dramatically in the course of evolution, into a marvelous variety ...

dateJan 27, 2014 in Evolution
shares0 comments 0

High-angle helix helps bacteria swim

(Phys.org) —A high-angle helix helps microorganisms like sperm and bacteria swim through mucus and other viscoelastic fluids, according to a new study by researchers from Brown University and the University of Wisconsin. ...

dateAug 13, 2013 in General Physics
shares0 comments 0

Why do we gesticulate?

If you rely on hand gestures to get your point across, you can thank fish for that! Scientists have found that the evolution of the control of speech and hand movements can be traced back to the same place in the brain, which ...

dateJul 02, 2013 in Plants & Animals
shares0 comments 0