Previous studies indicate that some populations of the little fire ant, Wasmannia auropunctata, display an unusual reproduction system polymorphism. Although some populations have a classical ...

The female reproductive tract, which includes the oviducts, uterus, cervix and vagina, is derived from the Müllerian ducts that form in both male and female fetuses. The Müllerian ducts are composed ...

Most animals carry out sexual reproduction. Sexual reproduction involves the joining of two sex cells or gametes – the sperm (male gamete) and the egg or ovum (female gamete). The male and female ...