Polar Ecology is one ecologist's attempt to sum up plant, animal and environmental relationships in the polar regions. Ecology grabs ecologists in different ways. I was grabbed in Antarctica by Adelie penguins, incubating contentedly at - 20 C with unmelting snow on their backs, and by minute black insects basking at lOoC in tufts of moss, while winds at - 15 C swept past unheeded. Some time later I saw snow buntings sheltering under Canadian eaves...