IB Biology SL
Evolution of Chimpanzees and Bonobos

Information about the evolution and distribution of chimpanzees and bonobos.

Figure 1: Map showing the distribution of chimpanzees and bonobos in Africa.

Figure 2: Chart showing the mean diet compositions of chimpanzees and bonobos.

Figure 3: Graph showing the mean number of microorganisms that aid in the digestion of cellulose and fibre in chimpanzees and bonobos.

Information about the play sessions of chimpanzees and bonobos.

Figures 4 and 5: Graphs showing the play session invitations for infant, teenage and adult chimpanzees and bonobos.

Figure 6: Graph showing the number of play sessions that escalate into overt aggression in bonobos and chimpanzees.

Citations