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