There existed competition and coexistence between A. chinense and its main companionspecies.
羊草与其主要伴生种之间存在竞争与共存作用。
2
Dogs and pigs have the same capacity to feel pain, but it is prejudice based on species that allows us to think of one animal as a companion and the other as dinner.
狗和猪都同样能感受到痛苦，但基于种类上的偏见却允许我们把一方视为伴侣，另一方则作为晚餐。
3
Anyone who's ever had the fortune of sharing their life with a close canine companion can attest that, from poodles to Pomeranians, dogs truly are a wondrous species.