12. Bat always exit a cave to the left. 蝙蝠出山洞只会向左飞。
13. Domestic cats kill an estimated one billion wild birds each year in the USA. 美国家猫估计一年杀了过亿只野生鸟。
14. The blue whale's whistle is the loudest noise made by an animal. 蓝鲸发出的口哨声是动物界能发出最大的声音。
15. Tigers have striped skin, not just striped fur. 老虎的皮也是有条纹的，不单单是在毛发上有。
16. The heart of a giraffe weighs more than 11 kg(25lb), is 60 cm (2 ft) wide and has walls 7.5 cm (3 in) thick. 长颈鹿的心脏净重11公斤，60厘米阔，7.5厘米厚。
17. Camels have three eyelids to protect their eyes from blown sand. 骆驼有三层眼皮去保护及防止沙尘。
18. A mole can dig a tunnel over 90 m (300ft) long in just one night. 地鼠一晚可以挖出90米的地道。
19. Elephants are not afraid of mice. 大象其实是不怕老鼠的。
20. Slugs have four noses. 蛞蝓/鼻涕虫有四个鼻子。
