
Crafty chimps use hilltops to spy on rival groups, reveals new research.
They use high ground to conduct “reconnaissance” – often before making forays into enemy territory at times when there is reduced risk of confrontation, say scientists.

Crafty chimps use hilltops to spy on rival groups, reveals new research.
They use high ground to conduct “reconnaissance” – often before making forays into enemy territory at times when there is reduced risk of confrontation, say scientists.