Peculiar galaxies are unusual galaxies that exhibit strange shapes or structures, often due to gravitational interactions with other galaxies. These interactions can lead to distortions, such as elongated arms or irregular formations, making them stand out from typical spiral or elliptical galaxies. Many peculiar galaxies are the result of collisions or mergers between galaxies, which can trigger bursts of star formation. Examples include the Antennae Galaxies and Arp 220, both of which showcase dramatic features caused by their dynamic interactions. Studying these galaxies helps astronomers understand the processes that shape the universe.