A Complete Collection of 100000 Whys
Fav十万个为什么
为什么有些生物会灭绝？
1、环境变化：气候变化、地质活动或自然灾害（如火山爆发、地震）导致生物栖息地被破坏，生物无法适应新环境。
2、食物短缺：资源枯竭或食物链断裂，导致生物无法获得足够的食物生存。
3、天敌增多：捕食者数量增加或出现新的捕食者，导致猎物数量急剧下降。
4、疾病传播：病原体变异或新疾病出现，导致生物群体大规模死亡。
5、人类活动：过度开发、污染、栖息地破坏和外来物种入侵，加速了生物灭绝的速度。
总之，生物灭绝是多种因素共同作用的结果，包括自然环境和人为因素，这些因素使得生物无法适应变化，最终导致灭绝。
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