According to the social structure of View the full answer Transcribed image text: Question 20 Which of the following is a difference between chimpanzees and bonobos O Bonobo females can achieve more dominance status. It’s not yet clear whether the two episodes of gene flow happened at low levels over a long time or in discrete pulses. Expert Answer 20.) ans (a) Bonobo females can achieve more dominance status. In addition to their physical differences, such as body shape and size, facial features, and bipedal nature, chimpanzees and bonobos have many behavioral differences that make it obvious how different the two species really are.
The genetic evidence shows that a little less than 1 per cent of the chimpanzee genome came from bonobos, from one contact between 200,000 and 550,000 years ago and another, more recent one less than 200,000 years ago. “We thought it was a mistake, but we kept seeing it,” says Hvilsom. Chimpanzees (Pan troglodytes) and bonobos (P. How can we be so similar-and yet so different So Much Alike. Here, we present data on the body composition of 13 bonobos (Pan paniscus) measured during anatomical dissections and compare the data with Homo sapiens. They were mapping genetic markers that could be used to determine where illegally traded chimps came from so they could be returned to their homes in the wild.īut when they compared the chimp genomes to those of bonobos, they found clear signs of bonobo genes. Humans and chimps share a surprising 98.8 percent of their DNA. Hvilsom and her colleagues weren’t actually looking for genetic evidence of ancient interspecies erotica. But it turns out that it must have been breached more than once – although it’s not clear how that happened. Statistically, the 12.4 per cent difference does not make bonobos significantly closer to humans than chimpanzees (both Pan species remain sister taxa), but it has evolutionary researchers puzzled. A table highlighting the key physical differences between chimpanzees and bonobos. You can always tell a bonobo from a chimp by their lips Bonobos have bright pink lips while chimpanzees have dark lips. Scientists assumed the river was an impenetrable barrier, says Christina Hvilsom from Copenhagen Zoo in Denmark, one of the researchers who worked on the genetic project. Bonobos have dark black faces from birth, while baby chimps have pale pink faces that darken with maturation.
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