Science without borders is a common theme in the actual global world. Long-term collaboration and exchange between Mexican and US scientific communities has been an important constant in the development of both sides of the border. In the case of ecology, both scientists and organisms that we study operate without regard to political boundaries. Despite different cultures and languages, Mexican and American scientists have developed long-term collaborations and educational exchange to advance science and train the next generation of scientists.  Over the past three decades, capacity building efforts in Mexico have led to an exponential increase in the number of scientists that have been trained with advanced degrees in Ecology and related fields. Scientists and citizens of all generations on both sides of the border benefit from the expansion of ecological knowledge and expertise. A much greater understanding of biodiversity, its trends, origins, mechanisms of coexistence and the factors that imperil its persistence has emerged as a consequence of such collaborations. In this Inspire session, we want to show by pairing Mexican and American Ecologist by common themes, not only what we are creating together but also that complementary points of view enrich both sides of the border. This is imperative to understand in these times of global ecological emergency where only knowledge can lead the way.