Promiscuous Apes Make More Sperm

chimpanzee-suzi-eszterhas

Promiscuous ape species have bigger testicles

Chimpanzees produce 200 times more sperm than gorillas, the world’s largest primates, and 14 times more than orangutans, scientists based in Japan reveal.

Promiscuous ape species have bigger testicles, and the latest discovery finally provides evidence that they also produce more sperm.
Scientists previously proposed that chimps have large testicles because several males mate with a single female, and so have to produce more sperm in order to compete.

For their research, published in the American Journal of Primatology, scientists studied chimpanzees, orangutans and gorillas from zoos in Japan and Indonesia.

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New Evidence Humans Are Related To Orangutans

New Evidence Humans Are Related To Orangutans

Humans related to orangutans, not chimps 

New evidence underscores the theory of human origin that suggests humans most likely share a common ancestor with orangutans, according to research from the University of Pittsburgh and the Buffalo Museum of Science. Reporting in the June 18 edition of the Journal of Biogeography, the researchers reject as “problematic” the popular suggestion, based on DNA analysis, that humans are most closely related to chimpanzees, which they maintain is not supported by fossil evidence .

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Time’s Top 10 Scientific Discoveries

Time’s Top 10 Scientific DiscoveriesTime’s Top 10 Scientific Discoveries 

1. Large Hadron Collider

Good news! The Large Hadron Collider (LHC) – the massive particle accelerator straddling the Swiss-French border – didn’t destroy the world! The bad news: The contraption didn’t really work either. In September, the 17-mile collider was switched on for the first time, putting to rest the febrile webchatter that the machine would create an artificial black hole capable of swallowing the planet or at least a sizeable piece of Europe – a bad day no matter what. No lucid observer ever thought that would really happen, but what they did expect was that the LHC would operate as advertised, recreating conditions not seen since instants after the Big Bang and giving physicists a peek into those long-vanished moments. Things looked good at first, until a helium leak caused the collider to shut down after less than two weeks. Repairs are underway and the particles should begin spinning again sometime in June.

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