biological

Officials have said the unnamed roommate was a "biological male" who was transitioning from man to woman and was in a romantic relationship with the defendant.

Among the many strange biological wonders Charles Darwin observed in his time, one haunted him above all.

He likened it to a biological process, where each generation builds upon the growth of the previous iteration.

In a video shared on social media, Yulia Navalnaya said analysis of smuggled biological samples carried out by laboratories in two countries showed that her husband had been "murdered".

As an adult she learned her biological mother’s name.