例句與造句

1. Tool use by animals may indicate different levels of learning and " Eureka moment ".
2. Tool use by animals tells us that ants will drop stones down the burrows of rival colonies.
3. Some of the most thoroughly documented ethological examples of tool use by animals in the wild were of chimpanzees observed using hammers of wood or stone to crack nuts, with logs or rocks serving as anvils.
4. It's difficult to find tool use by animals in a sentence. 用tool use by animals造句挺難的