Testosterone: Violence, Sex, and Power (0:56)
Testosterone: Myth and Reality (0:55)
Male Behavior and Testosterone (1:10)
Testosterone Molecule (0:57)
Testosterone in Animals and Humans (1:10)
Primate Research Center (1:02)
How to Gather Samples of Chimp Testosterone (1:28)
Analysis of Chimp Testosterone (1:01)
Testosterone in the Womb (0:47)
Testosterone Levels: The Finger-Length Test (1:00)
Gender Stereotyping (1:03)
Technology and Sex-Determined Behavior (1:10)
Testosterone: Tests with Monkeys (1:06)
Adolescence: Age of Testosterone (1:05)
Male Behavior and Mating Rituals (0:57)
Testosterone and Adolescence (1:14)
Change in Social Setting and Male Dominance (2:45)
Fluctuating Testosterone Levels (1:10)
Testosterone, Men, and Sports (1:00)
Testosterone and Male Competition (1:07)
Competition Losers, Winners, and Testosterone (1:14)
Cost of High Testosterone (1:07)
Hyenas: Submissive Males (1:04)
Experiments with Hyenas (1:03)
Testosterone Levels in Female Hyenas (1:23)
Aggression and Testosterone in Human Males (0:48)
"Ultimatum" Game for Males (1:34)
Testosterone and Social Status (1:02)
Testosterone Levels and Status Threats (0:57)
Testosterone and Mating Game (1:08)
Female Preferences for Males (0:55)
Females Chose Males (0:52)
Marriage and Testosterone Levels (0:52)
Fatherhood and Testosterone Levels (1:14)
Lower Testosterone Levels in Fathers (1:31)
Children Affect Male Testosterone Levels (0:52)
Manipulation of Testosterone Levels (1:01)
Transgender Issues (0:59)
Testosterone and Libido (1:07)
Affects of Testosterone in Males (1:12)
Testosterone Levels of Rugby Team (1:37)
Testosterone Responds to Circumstances (1:04)
Testosterone: White Collar vs. Blue Collar (0:40)
