The cactus shown above expresses a clear adaptation. The most obvious adaptation of the cactus is its protection adaptation. The cactus has evolved through the means of natural selection and adapted it’s leaves to be replaced by spines and thorns. This does two things: First it reduces transpiration and more effectively stores water, which is an adaptation to thrive in the heat. Second, it protects against predators that attempt to kill the cactus to take its water. Using these adaptations, the cactus’ may continue to live with great fitness.