Ralph Catalano
Ralph Catalano
interest son survive weak
It's not in her evolutionary interest to have a weak son in times of stress. He may not survive or may not be competitive for females.
results studies
This has to be replicated elsewhere. We'll see what the results of those studies are.
female fragile likely male
Because male fetuses are more fragile than female fetuses, they are more likely to be damaged.
based directly humans natural test
We can never use humans to directly test out the theories. We can only make inferences based on natural observation.