Tree cactus (<i>Opuntia echios</i> var. <i>barringtonensis</i>) on Santa Fe Island, Galapagos. The birds perched to the right of the cactus are Swallow-tailed Gulls (<i>Creagrus furcatus</i>)
me
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>