A thorny problem
What? We’ve learned that a cactus’s thorns actually attract some herbivores.
White-throated woodrats do make life hard for themselves. These desert rodents eat cacti – and the pricklier the better, according to new research. It seems that the best-defended cacti are also the most nutritious, and that the woodrats use spininess as an indication of the goodness within. If a cactus’s spines are clipped, the woodrats lose interest.
SOURCE Oikos LINK http://bit.ly/1scoojz