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