In addition to its importance for animal cell structure, cholesterol also serves as a precursor for the biosynthesis of steroid hormones, bile acid, and vitamin D. Cholesterol is the principal sterol synthesized by all animals. In vertebrates, hepatic cells typically produce the greatest amounts.
The name Dougal is of Scottish origin. The meaning of Dougal is dark stranger. Dougal is generally used as a boy's name. It consists of 6 letters and 2 syllables and is pronounced Dou-gal.
In A Guardian Rises, the Exo Stranger appeared observing the reborn Guardian and the Ghost's escape from Old Russia. During The Dark Beyond, she is spotted by the Guardian, looking down at them from the rocks that line the edge of the gorge where they are attempting to gain entrance to the Temple of Crota.