Current research

rule out 31 genetic and biological factors

learn through 32 observation of other chimps’ behaviour

Discoveries

The book The third Chimpanzee discusses physical features of chimpanzees

reported by Jane Goodall suggests that chimpanzees know 33 making tools

Chimpanzees in Senegal

use spears sharpened with their teeth

can 34 open the shell of a coconut

use a 35 stone hammer to crash nuts

are capable of learning lot of 36 skills and understanding human language

Sub-species

Bonobos live on the other side of a 37 river

Both of them are reducing alarmingly in population 38 density

39 Chimpanzees learn things by:

A chimpanzee copy humans’ behavior

B chimpanzee folow the instructions

C chimpanzee has very strong ability for thinking logically

40 other conclusion of passage:

A developed behaviours over some many generations

B chimpanzee modify to adapt to the environment

C chimpanzee is slower than human in different ways

part4 黄蜂和蜜蜂的科普文章bees and wasps

31-40 completions

31. wasps turned up in 70 tp 76 million years ago.

32. bee is after appearance of mammals

33. table completion: compare bee and wasps

31. prey method of bee: ancient bees used body such as jaws

32. but an organ evolved tongue

33. wasps use stings to attack, defense and prey

34. but bee’s sting only self defense

35. flower taste was similar to sweet insect

36. modern plants depend on strong scent and bright

37. to attract bees in different color.