【雌性黑猩猩知道哪些雄性黑猩猩可能会杀死他们的幼崽】

【雌性黑猩猩知道哪些雄性黑猩猩可能会杀死他们的幼崽】 据每日邮报报道,根据一项新的研究显示,雌性黑猩猩让它们的婴儿远离那些正在崛起的雄性黑猩猩,因为它们很有可能杀死它们。肯特大学的科学家研究了乌干达Budongo森林中雌性黑猩猩的行为,黑猩猩(至少在研究界)特别容易犯下杀婴。该研究小组还发现有证据表明,雌猩猩更愿意与稳定的高级别的雄猩猩建立关系,因为这些雄性可以提供针对杀婴的保护。

 

Female chimps KNOW which males kill their babies: Mothers keep their young ones away from macho suitors who are rising through the ranks

  • Female chimps know which males are most likely to kill their young ones
  • They are likely to associate with a male of stable high rank status 
  • Male who rises quickly in rank is surrounded by babies he did not father 
  • This means a male who rises in rank is a threat to mothers and their babies

Female chimpanzees keep their babies away from males who are rising through the ranks as they are most likely to kill them.

This is according to a new study which revealed that female chimps know which males are most likely to kill their young ones.

Instead, female chimps are likely to associate with a male of stable high rank status on the basis that he could protect them against infanticide.

Scroll down for video

Female chimpanzees keep their babies away from males who are rising through the ranks as they are most likely to kill them

Female chimpanzees keep their babies away from males who are rising through the ranks as they are most likely to kill them

Scientists from the University of Kent studied the behaviour of female chimpanzees in the Budongo Forest, Uganda where chimpanzees (at least in the study community) are particularly prone to committing and suffering infanticide.

Males can benefit from infanticide when they can kill an unrelated infant and replace it with one they have fathered.

Because rank is linked to mating access in chimpanzees, a male who rises quickly in rank is surrounded by babies he is unlikely to have fathered, compared to any babies conceived after his rise.

This means a male who rises in rank is suddenly a threat to mothers and their babies.

Mothers, specifically those with younger, more vulnerable infants, reduced their association with the rank‐rising male during the period of instability, researchers found.

The research team also found evidence that females preferred to associate with a male of stable high rank on the basis that such males could offer protection against infanticide.

Female chimps are likely to associate with a male of stable high rank status on the basis that he could protect them against infanticide

Female chimps are likely to associate with a male of stable high rank status on the basis that he could protect them against infanticide

Because rank is linked to mating access in chimpanzees, a male who rises quickly in rank is surrounded by babies he is unlikely to have fathered, compared to any babies conceived after his rise

Because rank is linked to mating access in chimpanzees, a male who rises quickly in rank is surrounded by babies he is unlikely to have fathered, compared to any babies conceived after his rise

PhD student, Adriana Lowe, who led the research said: ‘Watching chimps killing infants is really shocking and although it’s pretty well reported, it’s not been entirely clear why they do it.

'The mothers’ behaviour in our study supports the hypothesis that it’s a strategy by the males to get more mating opportunities.

'Male chimps are often described as great politicians as they use complex alliances to compete for high rank'.

However this latest paper shows that the females are just as tuned in to the social environment.

Mothers, specifically those with younger, more vulnerable infants, reduced their association with the rank¿rising male during the period of instability, researchers found

Mothers, specifically those with younger, more vulnerable infants, reduced their association with the rank‐rising male during the period of instability, researchers found

They watch the males from the side-lines, 'sensitive to any changes which might put their babies in danger', Ms Lowe said.

The research builds on pioneering observations of infanticide in this community by co-author Dr Nicholas Newton-Fisher who first studied the group more than 20 years ago.

The paper has been published in the American Journal of Physical Anthropology.

https://www.dailymail.co.uk/sciencetech/article-6291415/Female-chimps-KNOW-males-kill-babies.html


Comments are closed.



无觅相关文章插件