title: When push comes to shove.
authors: Nigel
authors: N
authors: Williams
mesh_terms: D000818:Animals; D005638:Fruit / Q000502:physiology; D027621:Iridaceae / Q000033:anatomy & histology / Q000235:genetics* / Q000502:physiology; D009036:Moths / Q000033:anatomy & histology* / Q000235:genetics / Q000502:physiology; D018514:Plant Structures / Q000033:anatomy & histology* / Q000235:genetics / Q000502:physiology; D011058:Pollen / Q000502:physiology*; D012641:Selection, Genetic; D014059:Tongue / Q000033:anatomy & histology