I just found this interesting. Some researchers extracted testosterone from woolly mammoth hair. The article says:
The presence of testosterone in a pooled mammoth hair extract was confirmed with LC‐MS/MS using a similar sample preparation method as a recent study of cortisol in muskox. The hair pool was gently washed by water for 3 min, rinsed with HPLC grade isopropyl alcohol, dried by paper towel and placed in a fume hood overnight.
Mean male (n = 6) hair testosterone levels were 3.18 pg/mg hair, whereas female (n = 4) were 1.83 pg/mg hair (Fig. 2). Standard deviations were similar between the two sexes (1.26 in females vs 1.16 in males). Male minimum levels were more than twice those of females’ (1.86 pg/mg hair in males compared with 0.77 pg/mg hair in females) while maximal levels detected for a male was 4.57 pg/mg hair (vs 3.48 pg/mg hair for a female). High testosterone is typical of the third trimester pregnancy, and it is thus possible that females with high testosterone were pregnant.
The presence of testosterone in a pooled mammoth hair extract was confirmed with LC‐MS/MS using a similar sample preparation method as a recent study of cortisol in muskox. The hair pool was gently washed by water for 3 min, rinsed with HPLC grade isopropyl alcohol, dried by paper towel and placed in a fume hood overnight.
Mean male (n = 6) hair testosterone levels were 3.18 pg/mg hair, whereas female (n = 4) were 1.83 pg/mg hair (Fig. 2). Standard deviations were similar between the two sexes (1.26 in females vs 1.16 in males). Male minimum levels were more than twice those of females’ (1.86 pg/mg hair in males compared with 0.77 pg/mg hair in females) while maximal levels detected for a male was 4.57 pg/mg hair (vs 3.48 pg/mg hair for a female). High testosterone is typical of the third trimester pregnancy, and it is thus possible that females with high testosterone were pregnant.
