How does the colossal squid breathe?

The colossal squid breathes using gills, which are specialized organs located in its mantle cavity. Water enters the mantle through an opening, flows over the gills, and oxygen is absorbed while carbon dioxide is expelled. This gas exchange allows the squid to extract the oxygen it needs to survive in the deep ocean environment. The gills are highly efficient, enabling the colossal squid to thrive in its dark, high-pressure habitat.