Fascinating Discovery Finds That the White-throated Sparrow Species Has Four Sexes
Sex in nature is hardly simple. While “biological sex” is often used in reductive and factually incorrect political parlance, the science of chromosomes is far from a simple dichotomy. In the natural world, some species change their sex as they age. Others such as the white-throated sparrow have a whopping four sexes or genotypes. As described in Current Biology, the species has evolved to have a surprising chromosomal anomaly which makes mating more complex.










































































