An 80-year-old Montana rancher has pleaded guilty to felony charges stemming from his role in an almost decade-long scheme to create "giant sheep hybrids," the Department of Justice said Tuesday.
Tilek is a Marco Polo argali sheep — the largest species of sheep in the world — and he’s now calling the Rosamond Gifford Zoo in Syracuse home. But Tilek isn’t just rare — he was illegally cloned.