And this proximity of Homo sapiens to the chimpanzee motivated Sir David even more to film behaviour never before seen .
They say , David Attenborough reports , that we share more of our genes with chimpanzees than any other species alive today .
This proximity of Homo sapiens to the chimpanzee motivated David Attenborough David Attenborough even more to film behaviour never before seen .
They say , David Attenborough reports , that we share more of our genes with chimpanzees than any other species alive today .