肉食性动物是指主要吃肉类的动物。肉食动物也可以吃腐肉或吸血。肉食性动物的牙齿：十分尖利，便与它撕咬食物。肉食性动物的爪：趾端长着能伸缩的利爪，便于它捕捉食物。它们以强有力的下巴，尖锐而突出的犬齿去撕裂肉块。
北极熊是陆地上最大的肉食性动物，比西伯利亚虎都要大两倍多！
The polar bear is the largest terrestrial carnivore, being more than twice as big as the Siberian Tiger!
肉食性海绵、小叶山药和平脸的迷幻璧鱼，这三者有什么共同点么？
What do a carnivorous sponge, a lobular yam and a flat-faced psychedelic frogfish all have in common?
数学模型也揭示了食物网可能是不稳定的，顶级肉食性动物的微小改变会对整个生态系统产生巨大影响。
Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
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