Two parasites, the love vine and the gall wasp, are both hosted by one species of oak tree, but on August 20 in the journal Current Biology, researchers at Rice University describe a new interaction between them. Rather than thriving at the expense of the oak alone, the vine leaches nutrients and moisture away from the wasp larvae developing in the tree. While the young insects mature, the oak grows tumors around them, but the vine seeks out these unusual growths to take out the next generation of wasps.