This is the best summary I could come up with:

Nov 2 (Reuters) - On the boundary of dangerous territory, a troop of about 30 individuals engaging in a border patrol climbs a rocky hill to conduct reconnaissance.

But in this case, it involved not people but chimpanzees in Tai National Park in southwestern Ivory Coast, West Africa’s largest protected area of rainforest.

Researchers said on Thursday they have documented the tactical use of elevated terrain in warfare situations while observing on a daily basis two neighboring communities of wild western chimpanzees in Tai National Park for three years.

Information obtained during hilltop reconnaissance shaped whether the chimpanzees made forays into enemy territory, the study found, with these apes appearing more apt to do so when the risk of confrontation was lower.

The study, the researchers said, records for the first time the use of this age-old human military strategy by our species’ closest living relatives.

“It also teaches us what we have in common with our closest living relatives, how similar we are with wild animals, and that we only differ from our cousins in degree and not in nature,” Lemoine added.

The original article contains 655 words, the summary contains 183 words. Saved 72%. I’m a bot and I’m open source!