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Bonobo (video) Female chimpanzee at Tobu Zoo in Saitama, Japan. Anatomical differences between the common chimpanzee and the bonobo are slight. Both are omnivorous adapted to a mainly frugivorous diet. [50] [51] Yet sexual and social behaviours are markedly different.
Extant primates exhibit a broad range of variation in sexual size dimorphism (SSD), or sexual divergence in body size. [4] It ranges from species such as gibbons and strepsirrhines (including Madagascar's lemurs) in which males and females have almost the same body sizes to species such as chimpanzees and bonobos in which males' body sizes are larger than females' body sizes.
Formerly the bonobo was known as the "pygmy chimpanzee", despite the bonobo having a similar body size to the common chimpanzee. The name "pygmy" was given by the German zoologist Ernst Schwarz in 1929, who classified the species on the basis of a previously mislabeled bonobo cranium, noting its diminutive size compared to chimpanzee skulls.
Male and female western chimpanzees differ in their prey. In Fongoli, Senegal, Senegal bushbabies account for 75% of females' prey and 47% of the males'. While males will prey more on monkeys, such as green monkeys (27%) and Guinea baboons (18%), only males were observed to hunt patas monkeys and only females were observed to hunt banded mongooses.
Sex organs are typically differentiated into male and female types. In animals (including humans), the male sex organs include the testicles, epididymides, and penis; the female sex organs include the clitoris, ovaries, oviducts, and vagina. The testicle in the male and the ovary in the female are called the primary sex organs. [1]
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[4] [5] Whilst studying bonobos at San Diego's Wild Animal Park, she demonstrated a distinct preference of bonobo females for each other's company. [6] Parish moved to the University of Giessen in Germany, where she focussed on reciprocity. [7] Parish uses an evolutionary approach to understand human behaviour. [8]
President Joe Biden is commuting the sentences of nearly 1,500 people and pardoning 39 others in "the largest single-day act of clemency in modern history," the White House announced Thursday ...