5 Read the article again. Check if the statements below are true (1) false (F). Correct the false statements.
a Jane Goodall observed gorillas.
b Jane Goodall's study is the longest study of animals in the wild.
C Chimpanzee used twigs to catch ants.
d Tool use requires fingers.
e Octopuses use coconut shells to hide.
f Only humans use tools symbolically.