The concept that biodiversity feeds upon itself is an old idea, but it's difficult to prove because it requires biologists to simultaneously catch several species red-handed just as they are becoming new species. Now biologists have proof.
'"Our study addresses one of the central questions in biology: How do new forms of life originate?"'
Rhagoletis is in the act of evolving into two species. The change is driven by differently timed fruiting cycles between apple trees, which some Rhagoletis prefer, and the North American hawthorn, the native fruit where Rhagoletis have traditionally laid their eggs.
Analyses showed that all three wasp species were also in the process of diverging into two distinct species, both genetically and with respect to host-associated physiology and behavior.
http://www.sciencedaily.com/releases/2015/10/151029185553.htm
TL; DR: A species of fruit fly is in process of speciation (forming a new species) and 3 other parasitoid wasps were found to enter speciation process in response.
Anonymous 10/30/15 (F