It may look like the product of some hemispherical collision, but this photo, which pictures caribou crossing a stream while surrounded by king penguins, is completely real. This strange juxtaposition of species occurs on the island of South Georgia in South Atlantic Ocean. But beyond its oddity, however, the photo also represents (with a bit of imagination) much of what the Fagan lab is about (underlined items below). For example, the photo includes representatives of some of the many different species that we have worked on over the years, including ungulates and penguins. It also embodies many of the different ecological concepts we have worked on including movement ecology, spatial population dynamics, and (if you stretch the analogy a bit) the ecology of rivers. Additional conceptual connections exist as well. The caribou, now reduced to only a few individuals (such that Allee effects might be important), are a non-native species in South Georgia, and their translocation to the Southern Hemisphere required a complete restructuring of their behavioral phenology.