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