Marc Johnson, a faculty on evolutionary biology and a specilist on plant herbivore intraction research of Univ Toronto pay a two weeks visit to EEPAI. Dr Johnson give two talks, one is to XTBG seminar and one to EEPAI+Paeloecology lab meeting, and have intensive intraction with researchers and students here in XTBG. Marc and Chen Jin have discussed possibility of students and researchers exchange program between EEPAI and Marc’s lab.