1. Volume 27, Issue 24, Pages R1299-R1300 (December 2017)
Trophallaxis 
Adria C. LeBoeuf 
Current Biology 
Volume 27, Issue 24, Pages R1299-R1300 (December 2017)
DOI: /j.cub
Copyright © 2017 Elsevier Ltd Terms and Conditions

2. Figure 1
Two adult Camponotus floridanus ants engaging in trophallaxis.
Adaptation of Wheeler’s “ever-widening vortex” of trophallaxis, beginning with the ancestral form of this behavior — parental care — and extending to a derived form wherein ants engage in fluid exchange with plants. For a video, see:
Current Biology  , R1299-R1300DOI: ( /j.cub )
Copyright © 2017 Elsevier Ltd Terms and Conditions