Resumen:

From a galaxy's point of view, its environment has continued to evolve during its lifetime, going from lower to higher density regions as it moves across the cosmic web. I will review our current understanding of the effect of environment on galaxy evolution, including the consequences of gravitational interactions with other galaxies and hydrodynamical interactions with its host group or cluster. I will also show recent studies on galaxies caught in the act of transformation, such as the spectacular "jellyfish" galaxies which are in the process of gas stripping due to intense ram-pressure by the intracluster medium. I will further discuss the current challenges in our understanding of galaxy evolution, including the complexity imposed by the hierarchical formation of structure which leads galaxies to be "pre-processed" in groups and filaments prior entering a massive cluster. I will end with an overview of the ongoing and future observational prospectives in the field.