  In the past few years, a possibility is investigated, where curvature itself
behaves as a source of dark energy. So, it is natural to think whether
curvature can produce dark matter too. It is found that, at classical level,
higher-derivative gravity yields curvature inspired particles namely riccions
[11]. Here, it is probed whether riccion can be a possible source of dark
matter. Further, it is found that the late universe accelerates. Here, it is
interesting to see that acceleration is obtained from curvature without using
any dark energy source of exotic matter.
