They have more testosterone and progesterone when they are babies
They are more aggressive
All of the above
They have territories
They have different colored dewlaps
reading a book
running away from a fight
starting a fight
sharing toys at the playground
a chemical that is higher in women than in men
a type of tree lizard
a type of lizard behavior
a hormone in lizards and people
warming themselves in the sun
communicating with other lizards
catching insects
changing their hormone levels
he gives them more testosterone or progesterone
he gives them more food
he threatens to bite them
he gives them territories with lots of females