According to a new study published in the journal Royal Society Open Science, chimpanzees use spear-like hunting tools in order to kill their prey. The chimpanzees build their own weapons and use them to hunt.
However, the research reveals that female chimpanzees are the ones that make and use these hunting tools.
The researchers involved in the study wrote that the new findings could help them understand how the human species evolved.
It is generally believed that the males of the species do all the hunting and the tool making, while the females stay at home and take care of the offspring.
However, the new study suggests that this does not really apply in the case of some chimpanzees.
A team of researchers from the University of Iowa State reported back in 2007 that the chimpanzees from Fongoli, Senegal were hunting using tools.
The researchers also noted that some of the chimpanzees that used tools to hunt were females.
The scientists have been documenting the chimpanzees involved in more than 300 hunts using tools like spears and other instruments crafted by the animals.
The researchers have been observing them for the past eight years and were able to draw some conclusion regarding the apes’ behavior.
According to what the researchers noted, male chimpanzees make up approximately 60% of the studied chimp group, however, the males were present in only 40% of the hunting trips.
And when they did go out hunting for food, the researchers noted that the male chimps used their hands to capture and like the prey, while the females were observed using tools most of the time when going hunting.
Jill Pruetz, professor of anthropology at Iowa State University and one of the researchers involved in the study, said that this is another example of how diverse the behavior of chimpanzees really is. The more they study it, more unknown aspects of their behavior are being revealed, Pruetz added.
Some of the favorite foods of these chimpanzees include the galagos, which are small, nocturnal primates also known as “bush babies”.
The researchers have often observed the female chimpanzees poking at the galagos using spears. While the small primates run to from their cover, the male chimpanzees captured them with their hands.
Image Source: biolinguistic