The research used a new, innovative analysis that meant we could distinguish between population decline that happened thousands of years ago and much more recently. |
This is the first time that a recent and alarming decline of a great ape population -- brought about by man -- has been demonstrated, dated, and quantified using genetic information. |
This is the first time that a recent and alarming decline of a great ape population brought about by man has been demonstrated, dated and quantified using genetic information. |
This is the first time that a recent and alarming decline of a great ape population, brought about by [people], has been demonstrated, dated, and quantified using genetic information. |