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 ...

Jan 27, 2014
4.5 / 5 (4) 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 ...

Aug 13, 2013
3.5 / 5 (2) 0 | with audio podcast

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 ...

Jul 02, 2013
4.3 / 5 (4) 0 | with audio podcast

Study shows how one insect got its wings

(Phys.org) —Scientists have delved deeper into the evolutionary history of the fruit fly than ever before to reveal the genetic activity that led to the development of wings – a key to the insect's ability ...

Mar 11, 2013
3 / 5 (1) 0 | with audio podcast