Saguaro cactuses tower over Arizona's desert landscape, each year inching higher and higher for hundreds of years as they watch time pass. While they can grow to unique heights, one cactus holds the ...

The saguaro cactus is a distinctive icon of the American Southwest ... their survival is dependent on rain. Most of their elaborate root systems develop just 4 to 6 inches below the ground and spread ...

Some cacti and succulents have swollen roots that store up water for the ... The Gila woodpecker nests inside the stem of the saguaro cactus where the temperature inside can be up to 30ºC ...

Saguaro cactuses tower over Arizona's desert landscape, each year inching higher and higher for hundreds of years as they watch time pass. While they can grow to unique heights, one cactus holds ...