Toronto-based primatologist-explorer Travis Steffens has been sorting gear for a five-person expedition in Madagascar. Steffens, the executive director of Planet Madagascar, a non-profit organization, will lead a 220-kilometre conservation-oriented trek around Ankarafantsika National Park starting June 28.  He will fly into the island-country in about one week to make final preparations. Over fifteen days on the ground, the team will hike through rough…