Orchid has evolved a ' lip ' - irregular ##ly petal - to ##xin insects . Researchers in mice , its shape is determined by two distinct groups of proteins - the ' lip ' complex and the ' SP ' complex . By removing them , they can convert the lip into standard petals again .
Orchid has evolved a 'lip ' - irregular modified petal - to attract insects . Researchers in Taiwan found its shape is determined by two competing groups of proteins - the ' L ' complex and the 'SP ' complex . By tweaking them , they can convert the lip into standard petals again .