The patterns of selection (i.e. how selective the chimpanzees were) is very similar to that which scholars have seen in the archaeological record for early humans more than 2 million years ago.

By Gilbert Nakweya NAIROBI ― Understanding the genetic traits of chimpanzees and how they help them adapt to unique ...

Modern chimpanzees select rock tools in similar ways to Oldowan hominins, early humans who used stone tools that date back to around 2.5 million years ago. According to a new study, these ...

In their paper published in the Journal of Human Evolution, the group describes the way chimpanzees choose rocks ... dating back to approximately 2.5 million years ago. They used rocks as choppers ...

nemestrina than is required to infect chimpanzees and that the infection may only be transient [2]. Another recently reported alternative is the use of recombinant SIV strains expressing the HIV-1 ...