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