Formation of the body axes is a critical part of embryonic development. They guarantee that all body parts end up where they belong and that no ears grow on our backs. The head-tail axis, for example, ...

The planarian is nobody's idea of a genius. A flatworm shaped like a comma, it can be found wriggling through the muck of lakes and ponds worldwide. Its pin-size head has a microscopic structure that ...

For those of us whose memory of high school biology hasn’t faded entirely, planarians will probably sound very familiar. They’re generally used as an example of one of the extreme ends of regenerative ...

Our basic body plan is determined early during embryonic development by the formation of three body axes. Put simply, they determine where up and down, front and back and right and left are. The ...