<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><div style="font-family:arial,sans-serif;font-size:12.8px"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">Dolly the sheep was born 20 years ago and died at a relatively ​early age leading some to speculate there is an inherent flaw in the cloning process itself, but apparently that is not the case. The journal Nature Communications reports on 13 cloned sheep, 4 of which were derived from the same cell line as Dolly, they are aged between 7 and 9 years old (equivalent to a human in her late 60s or early 70s), and are all going strong and are still healthy for sheep of that age. It seems that Dolly was just unlucky, <span style="font-family:arial,sans-serif">Kevin Sinclair the lead author of the study said of the 4 Dolly clones  "</span><span style="font-family:arial,sans-serif">They’re old ladies but </span><span style="font-family:arial,sans-serif">very healthy for their age".</span></font></div></div><div style="font-family:arial,sans-serif;font-size:12.8px"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></div><div style="font-family:arial,sans-serif;font-size:12.8px"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><a href="http://www.nature.com/ncomms/2016/160726/ncomms12359/full/ncomms12359.html" target="_blank">http://www.nature.com/ncomms/2016/160726/ncomms12359/full/ncomms12359.html</a><br></div></div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><font size="4">​ John K Clark​</font></div></div></div></div>