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