  Inspired by how the shape deformations in active organisms help them to
migrate through disordered porous environments, we simulate active ring
polymers in two-dimensional random porous media. Flexible and inextensible
active ring polymers navigate smoothly through the disordered media. In
contrast, semiflexible rings undergo transient trapping inside the pore space;
the degree of trapping is inversely correlated with the increase in activity.
We discover that flexible rings swell while inextensible and semiflexible rings
monotonically shrink upon increasing the activity. Together, our findings
identify the optimal migration of active ring polymers through porous media.
