[大自然真神奇]除了啮齿类,人类是不是数量最多的哺乳动物物种了?
DivineBuster@2011-09-18 08:05
除了老鼠什么的,真想不出有什么哺乳类动物比人类多了なのcerberuslegend@2011-09-18 09:39
The mammal group with the highest population is the mouse. With an estimated 30 per every human on earth, that means there are approximately 210 billion mice on the planet. The single mammal species with the highest population would be Humans. Cows number approximately 1.3 billion. Dogs number 500 million, cats number 300 million. In short, the animals whose specie has the highest numbers are the ones with the most importance to humans. humans.....yeah humanscerberuslegend@2011-09-18 09:40
单一物种人最多，耗子那时全种类。esca@2011-09-19 08:54
悲剧啊，最多的就是人、人的宠物、人的食物、人的害虫...暗影翔@2011-09-19 16:22
太可悲了，赶紧2012吧