Intriguingly, when Dr Toda and Dr Baldwin looked at the molecular modifications which allowed the T1R1-T1R3 receptors of hummingbirds and Passeri to detect sweetness, they found them to be completely different.

有趣的是，户田博士和鲍德温博士研究了使蜂鸟和雀形目的T1R1-T1R3受体感知甜味的分子修饰，结果发现它们是完全不同的。