Complex sentence: Baby Vasas possess pads on their beaks which when stimulated prompt a strong feeding response, these pads disappear after only a few weeks, however the feeding or'weaning' reflex remains unusually strong well into adulthood.
Split into simpler sentences: Baby Vasas possess pads on their beaks which when stimulated prompt a strong feeding response. These pads disappear after only a few weeks, however the feeding or'weaning' reflex remains unusually strong well into adulthood.