1·According to entomologists, single locusts are quiet creatures, but when locusts are placed with others of their species, they become excited, change color, vibrate, and even hum.
根据昆虫学家的说法，单个的蝗虫是安静的生物，但是当它们和同类的其他蝗虫放在一起时，它们会变得兴奋，变色，振动，甚至嗡嗡叫。
2·The Rice engineers plan to use nanomaterials discovered by team member Stephan Link to create sheets of materials that can see light in the same ways as cephalopods' skin and change color quickly.
莱斯大学的工程师们计划使用由组员Stephan Link所发现的纳米材料创制能感知光的薄片材料，它与头足类动物皮肤的快速变色原理一致。
3·Hd glasses, wear eyes don't change color.
高清眼镜，佩带后双眼不变色。
4·However, this doesn't explain why the leaves change color in the first place.
但是这解释不了树叶开始变色的位置。
5·Sometimes a tooth with a root canal filling will change color.
牙根管补过的牙有时会变色。