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