humans have some necessary needs to full fill in order to survive in this world like food. now we use both plants and animals as our food sources and as our number increases the food consustion also increases and we in danger the life of both plant and animal species since we are omnivores. the other basic thing we need is shelter again when the number of the human population continues to grow,people will need more space to live on ......then they start widening their territories cutting down trees. so generally if the number of human pop increases or continues to grow it will destroy more species in order to survive.