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