Animal and plant collectors have also devastated the desert. People who collect rare species of cacti have completely wiped out entire populations. These people keep them for decoration, plant them in their yards, and trade them. A single plant can sell for hundreds of dollars. Chuckwalla lizards have also been targeted to be sold in the pet trade. People take these large lizards out of their habitat and then sell them to people as pets. Their numbers have also been reduced dramatically.