qurly(not curly)joe<p>Life on Earth may have started earlier than previously thought.</p><p>All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. </p><p>A study suggests that this organism likely lived on Earth only 400 million years after its formation.</p><p>Further analysis also shows that this life form likely sported an early immune system, which means it was probably fighting off viruses.</p><p><a href="https://www.popularmechanics.com/science/environment/a64186168/single-ancestor-life-luca-discovery/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">popularmechanics.com/science/e</span><span class="invisible">nvironment/a64186168/single-ancestor-life-luca-discovery/</span></a></p><p><a href="https://mstdn.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mstdn.social/tags/luca" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>luca</span></a></p>