The phrase "male offspring" refers to the male children or descendants of a person or animal. It is a way to specifically indicate or distinguish that the discussion or focus is on the sons, grandsons, or any male descendants. Full definition
They may convert genetic males into females, allow females to produce only daughters without the need for mating, or kill male offspring of infected females so that the daughters have more food. (sciencemag.org)
However, surprisingly the researchers did observe a drop in blood pressure in the female offspring but not in male offspring. (sciencedaily.com)
At weaning, only male offspring were raised to adulthood. (journals.plos.org)