Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not ...

Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time. (Matt Ridley)

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Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.

Matt Ridley Quotes: Male animals have a finite sum of energy that they can spend on testosterone or immunity to disease, but not both at the same time.