microbial mats
... that microbial mats increase our understanding of evolution by helping to preserve soft-bodied organisms and soft parts of hard-shelled animals?
... that <b id="mwDgY"><a href="./Microbial_mat" id="mwDgc" rel="mw:WikiLink" title="Microbial mat">microbial mats</a></b> increase our understanding of <a href="./Evolution" id="mwDgg" rel="mw:WikiLink" title="Evolution">evolution</a> by helping to <a href="./Taphonomy" id="mwDgk" rel="mw:WikiLink" title="Taphonomy">preserve</a> <a class="mw-redirect" href="./Soft-bodied_organisms" id="mwDgo" rel="mw:WikiLink" title="Soft-bodied organisms">soft-bodied organisms</a> and soft parts of <a class="mw-redirect" href="./Animal_shell" id="mwDgs" rel="mw:WikiLink" title="Animal shell">hard-shelled animals</a>?