mammal
assistant
excited
cactus
desert
tour
type of plant that grows in dry places, like deserts. It has thick stems and often has sharp spikes.
group of animals that have fur or hair and usually give birth to live babies. Mammals also drink milk from their mothers.
thrilled
a visit to see things
A large area of land that is very dry and has little rain. Deserts can have sand, rocks, and special plants.
person who helps someone else with tasks or responsibilities. An assistant can be a helper in the classroom or at home.