Wild rav­ens pur­pose­fully show ob­jects to their mat­ing part­ner­s

The class of be­hav­iours termed deic­tic ges­tures, which in­clude point­ing and show­ing, are aimed at draw­ing at­ten­tion to an ex­ter­nal ob­ject. Such ges­tures are thought to re­flect com­plex in­tel­li­gence and to rep­re­sent the start­ing point for the use of sym­bols and there­fore lan­guage.