A study by an international team of scientists has revealed that the primates either develop big voices, or big testes - but not both.
Scientists made the discovery while trying to understand the "evolution of some animals' incredible roars".
This is the first clear example, of a trade-off "vocal investment and sperm production" in any species.
The report concluded - "It was a surprise to find that such trade-offs might be more common than previously thought."
I have to admit reading it made me smile..... But is it a surprise?
Scientists made the discovery while trying to understand the "evolution of some animals' incredible roars".
This is the first clear example, of a trade-off "vocal investment and sperm production" in any species.
The report concluded - "It was a surprise to find that such trade-offs might be more common than previously thought."
I have to admit reading it made me smile..... But is it a surprise?
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