Worms can evolve to survive intersex populations
Tuesday, December 6, 2011 - 09:02
in Biology & Nature
(PhysOrg.com) -- Sexually reproducing species need at least two sexes in order to produce offspring, but there are many ways that nature produces different sexes. Many animals (including humans and other mammals) use a chromosomal sex determination system in which females have two X chromosomes, while males have one X and one Y.
