Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 meters) long.

Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 meters) long.

Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 meters) long, court records said.

Arthur 'Jack' Schubarth of Vaughn, 81, used tissue and testicles from giant Marco Polo sheep hunted in Kyrgyzstan to create a sheep he called the Montana Mountain King, or MMK.

In May 2017, a single, pure genetic male Marco Polo argali sheep that Mr. Schubarth named Montana Mountain King was born, prosecutors said.

After implanting the embryos in a ewe, a pure Marco Polo argali sheep was born, which Schubert named 'Montana Mountain King'- and which was used to artificially impregnate other ewes.

An 81-year-old Montana man faces sentencing for cloning a giant Marco Polo sheep using illegally trafficked tissue and testicles. A sentencing memorandum submitted by the defense congratulated ...

Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 metres) long, court records said.

Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 meters) long, court records said.