Scottnema lindsayae
... that the southernmost worm species, Scottnema lindsayae, reproduces best at temperatures below 10 °C (50 °F)?
... that the southernmost worm species, <i id="mwBic"><b id="mwBig"><a href="./Scottnema_lindsayae" id="mwBik" rel="mw:WikiLink" title="Scottnema lindsayae">Scottnema lindsayae</a></b></i>, reproduces best at temperatures below <span about="#mwt82" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"10"},"2":{"wt":"C"},"3":{"wt":"F"}},"i":0}}]}' id="mwBio" typeof="mw:Transclusion">10</span><span about="#mwt82" typeof="mw:Entity"> </span><span about="#mwt82">°C (50</span><span about="#mwt82" typeof="mw:Entity"> </span><span about="#mwt82">°F)</span>?