1. For example, a butterfly may produce offspring with new mutations. 例如，一只蝴蝶可能产生有新突变的后代。
2. The theory would predict a greater interest in sex among animals that produce lots of small offspring that compete with each other. 这一理论应该预测有性生殖在产生许多相互竞争的小后代的动物中有着更大的重要性。
3. Our deterioration and eventual elimination are not, therefore, programmed to obviate the risk of any competition with our offspring for food and space. 我们的退化和最终的消失不是，因此，程序化避免任何与我们子孙后代的食物和空间竞争的风险。
英英解释
n.
1. the immediate descendants of a person
2. something that comes into existence as a result
3. any immature animal
