A species of fruit fly from the Seychelles Islands often lays larvae instead of eggs, biologists have discovered. Clues to how animals switch from laying eggs to live birth may be found in the well-studied species’ ecology and genes.
A species of fruit fly from the Seychelles Islands often lays larvae instead of eggs, biologists have discovered. Clues to how animals switch from laying eggs to live birth may be found in the well-studied species’ ecology and genes.