What will we be able to do by further research on
animals' tool use?
Part 4
In general, tools are used by animals only to
The
perform simple tasks such as getting food.
Egyptian vulture drops a rock from the air on an
ostrich egg to break it open. Orangutans use sticks to
tools for other
get nuts and ants. Some animals use
simple purposes. A gorilla was seen breaking off a tree
branch and using it as a walking stick as she waded
through a swamp. Elephants pick up a stick and rub
an itch with it if they are unable to do that with their
long trunk.
An orangutan
モ
Iture [váltjar] os trich [ástrit] orang•u•tan [ɔ:ræŋətæn]
ril·la [gǝrilə] wade [wéid] swamp [swámp] rub [ráb]
e key, so he broke the box open.
d through the snow and finally got to school.
ng and I quickly picked it up.