The faculty of the Marco and Louise Mitrani Department of Desert Ecology (MDDE) study between them from thelevel of energy intake at the most basic level, through the complexities of behavioral-ecological interactions of communities to predator-prey interactions. The tools used include patient observation through cutting edge modern genetic analysis. The faculty of the Marco and Louise Mitrani Department of Desert Ecology (MDDE study ecology of animals and plants and the interactions between them from the level of energy intake at the most basic level, through the complexities of behavioral-ecological interactions of communities to predator-prey interactions. The tools used include patient observation through cutting edge modern genetic analysis.