Mutually helpful interactions between vegetation and frugivorous birds have superior for at least 80 million years (1). Now, higher than 70% of flowering vegetation rely upon birds to disperse their seeds, and about 56% of chook households eat fruits as part of their weight-reduction plan (2, 3). Crops sometimes have a number of seed disperser, and birds eat a number of sorts of fruits from utterly totally different plant species, thus establishing a fancy neighborhood of interactions. These networks can change considerably all through home and time (4). Over transient time spans, seed-dispersal interactions are dynamic and alter in response to parts resembling opponents or abundance of the interacting affiliate (5, 6). Nevertheless, the implications of evolutionary processes that occur over deep time is not going to be clear (7). On internet web page 733 of this issue, Burin et al. (8) advocate that evolutionary stability is said to the actual operate of the chook species in seed-dispersal networks.