Physics:Chemistry in Creation
If you can't make sounds and you have limited vision， then chemistry becomes a vital form of communication. A trail from just one milligram of the scent of leave-cut ant is enough to lead a column of ants three times around the world. But no where is the chemical form of communication more important than in sexual reproduction.
- Added：2006
- Country：Britain
- Duration：30
- Time of update：2011/8/15 16:18:37