Accuracy in sex determination for non-human primates approaches 100% given the significant degree of sexual dimorphism present in our close relatives.
"Sex" refers to biology. "Sex" is a biological quality or classification of sexually- reproducing organisms, generally female, male, and/or intersex, according to.
It's also possible that a female produces an egg that contains both copies of her sex chromosomes, Z and W, and is then fertilized by two sperm.
Young women say that they responded to ads seeking models and were tricked into performing.
A hormone boost from mom makes cubs more aggressive, increasing their chances of survival. But the benefit comes with a huge cost when it.