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