The actual venue for the news conference was no less strange - a cross between a tent and a greenhouse, perhaps like an abandoned aviary - with greenery draped around the white trellis work, miniature orange trees in tubs and two large trees growing up betweenthe TV cameras.
Suddenly, a stray turkey appeared betweentwotrees in the distance, hesitating as it decided whether to follow the flock or head toward our enticing calls.
As she reports in the Journal of Animal Ecology, she attempted to imitate the distinction betweentrees and ground by giving eight possums the opportunity to feed in either of two enclosures.