1.species种类n.2.degenerate退化3.breed物种，繁殖n.v.4.foodchain食物链5.mammal哺乳动物n.6.wildanimal野生动物7.livingcreature生物8.mature成熟a.v.9.immature不成熟的10.habitat栖息地n.11.inhabit栖息于，居住在12.evolve进化v.13.evolution进化14.instinct本能n.15.feature特点16.ability—capacity能力17.reproduction繁殖n.18.appetite食欲n.19.digestion消化n.20.offspring/descendent后代n.21.grub幼兽n.22.cub幼兽23.predator掠夺者n.24.prey被掠夺者n.25.migrate--migration迁徙26.aggression侵略n.27.hatch孵化v.28.hibernation冬眠n.29.chew咀嚼v.30.biologicaldiversity生物多样性31.visualandacousticfaculty视觉和听觉能力32.sense感官33.hormone荷尔蒙34.intelligence智慧35.emotion情感36.joint关节37.limb四肢38.cognition—recognition认知，再认知39.muscle肌肉40.nerve神经41.organ器官42.vulnerable易受伤害的43.mate交配伙伴44.gene基因45.insect昆虫46.aquaria水族馆47.marine海洋的48.lifespan寿命49.lifeexpectancy寿命50.fur皮毛51.imitatev.模仿52.mimicryn.模仿53.mimicadj.模仿的54.exist—existence生存55.extinct—extinction灭绝56.dieout灭绝57.endangeredrarespecies稀有濒危物种58.identifyrings身份标志圈59.pest害虫60.pesticide杀虫剂61.conservation保护62.mule骡63.donkey驴64.ox牛65.zebra斑马66.reindeer驯鹿67.giraffe长颈鹿68.camel骆驼69.puma美洲豹70.leopard豹71.tiger虎72.squirrel松鼠73.eagle鹰74.snake蛇75.turtle龟76.cow母牛77.goose鹅78.swan天鹅