Final answer:
Chimpanzees and bonobos share around 99% of their DNA with humans, pointing to a recent common ancestor and highlighting the close genetic relationship among these species.
Step-by-step explanation:
Chimpanzees and bonobos share an incredibly high percentage of their DNA with humans. Specifically, both of these species share around 99% of their relatable genomes with humans. This genetic similarity indicates that humans and these primates shared a common ancestor relatively recently in evolutionary terms. Despite this genetic closeness, chimpanzees and bonobos exhibit significantly different social structures and behaviors, illustrating how changes in few genetic aspects can lead to divergent evolutionary paths.