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part4 动物习性调查 It’s a lecture about research on several animals’habit

39. the number of *******: becomes twice of ...

40. longer grow seeds provide protection for ants

part4 海鸟繁殖研究，在平地还是斜坡高出的存活率Canada seabirds puffins

31-40 completion

31. people originally collecting feathers

32. research on the influence of oil tankers on the seabirds

33. decrease in population density

34. puffins like to live near vegetation

35. some eggs are in larger size

36. they will then attempt to topple each other in fighting

37. birds living in up level, feed on higher frequency, and in high speed

38. isolated island is out of reach by predators

39. conclusion: slope makes them fly faster

40. conclusion: the level of the nesting place

part4 伦敦地下管道 UK’s underground situation

31. North of London

32. rubbish/ dust/ contaminant 

33. more than 100 underground stations

34. traffic flow of 2 million passengers/ transportation

35. known as cut and cover

part4 大猩猩的行为研究study on behaviour of chimpanzee

31-38 completion

Species

We can find Pan or Pan Troglodytes in West and Central Africa.

The bonobo or Pan Paniscus are found in Democratic Republic of Congo