Discuss the extent to which (a) hunting and (b) constructing shelters would have been facilitated by the use of language.
What other modes of communication could have been used for these activities ?

Among living beings, it is humans alone that have a language. Humans may have possessed a small number of speech sounds in the initial stage.

Hunting activities of human:
(i) They could also discuss about the nature and behaviour of animals.
(ii) They can also discuss nature of tools used in hunting.
(iii) They can exchange ideas where the specific animals were found
(iv) People now could organise and manage hunting expeditions.

Construction of shelters by human beings:
(i) People now could discuss secure places for construction of their shelter.
(ii) They could now get information about the resources available around their surroundings.
(iii) People become edible to get knowledge about the materials used for places for construction of their shelter.
(iv) Their could also discuss the means to protect their shelter from severe condition.
Signs, symbols , oral, voice shouting, cave painting, engraving on the walls and ceiling on the caves are the other useful modes of communication used for these activities.