Many rhinoceros remains have been found preserved in the permafrost region.
In 1771, a head, two legs and hide were found in the Vilyuy River in eastern Siberia and sent to the Kunstkamera in Saint Petersburg.
Later in 1877, a Siberian trader recovered a head and one leg from a tributary of the Yana River.

In October 1907, miners in Starunia, Ukraine, found a mammoth carcass buried in an ozokerite pit.
A month later, a rhinoceros was found 5 metres (16 ft) underneath.
Both were sent to the Dzieduszycki Museum, where a detailed description was published in the museum's monograph.
Photographs were published in paleontological journals and textbooks, and the first modern paintings of the species were based on the mounted specimen.
The rhino is now located in the Lviv National Museum along with the mammoth.
Later, in 1929, the Polish Academy of Arts and Sciences sent an expedition to Starunia, finding the mummified remains of three rhinos.
One specimen, missing only its horns and fur, was taken to the Aquarium and Natural History Museum in Kraków.
A plaster cast was made soon afterwards, which is now held in the Natural History Museum in London.

Skull and rib fragments of a rhinoceros were found in 1972 in Churapcha, between the Lena and Amga rivers.
A whole skeleton was found soon afterwards, with preserved skin, fur, and stomach contents.
In 1976, schoolchildren on a class trip found a 20,000 year old rhinoceros skeleton on the Aldan River's left bank, uncovering a skull with both horns, a spine, ribs and limb bones.

In 2007, a partial rhinoceros carcass was found in the lower reaches of the Kolyma.
Its upward-facing position indicates that the animal probably fell into mud and sank.
Next year in 2008, a nearly complete skeleton came from the Chukochya River.
That same year, locals near the Amga discovered mummified rhinoceros remains, and over the next two years, pelvic bones, tail vertebrae and ribs were excavated along with forelimbs and hind limbs with toes intact.

In September 2014, a mummified young rhinoceros was discovered by two hunters, Alexander “Sasha” Banderov and Simeon Ivanov, at a tributary of the Semyulyakh River in the Abyysky District in Yakutia, Russia.
Its head and horns, fur, and soft tissues were recovered.
Some parts had been thawed and eaten, since they were not covered by permafrost.
The body was handed over to the Yakutia Academy of Sciences, where it was named “Sasha” after one of its discoverers.
Dental analysis shows that the calf was about seven months old at the time of its death.
With its well-intact preservation, scientists proceeded to undergo DNA analysis.
Many rhinoceros remains have been found preserved in the permafrost region. In 1771, a head, two legs and hide were found in the Vilyuy River in eastern Siberia and sent to the Kunstkamera in Saint Petersburg. Later in 1877, a Siberian trader recovered a head and one leg from a tributary of the Yana River.
In October 1907, miners in Starunia, Ukraine, found a mammoth carcass buried in an ozokerite pit. A month later, a rhinoceros was found 5 metres (16 ft) underneath. Both were sent to the Dzieduszycki Museum, where a detailed description was published in the museum's monograph. Photographs were published in paleontological journals and textbooks, and the first modern paintings of the species were based on the mounted specimen. The rhino is now located in the Lviv National Museum along with the mammoth. Later, in 1929, the Polish Academy of Arts and Sciences sent an expedition to Starunia, finding the mummified remains of three rhinos. One specimen, missing only its horns and fur, was taken to the Aquarium and Natural History Museum in Kraków. A plaster cast was made soon afterwards, which is now held in the Natural History Museum in London.
Skull and rib fragments of a rhinoceros were found in 1972 in Churapcha, between the Lena and Amga rivers. A whole skeleton was found soon afterwards, with preserved skin, fur, and stomach contents. In 1976, schoolchildren on a class trip found a 20,000 year old rhinoceros skeleton on the Aldan River's left bank, uncovering a skull with both horns, a spine, ribs and limb bones.
In 2007, a partial rhinoceros carcass was found in the lower reaches of the Kolyma. Its upward-facing position indicates that the animal probably fell into mud and sank. Next year in 2008, a nearly complete skeleton came from the Chukochya River. That same year, locals near the Amga discovered mummified rhinoceros remains, and over the next two years, pelvic bones, tail vertebrae and ribs were excavated along with forelimbs and hind limbs with toes intact.
In September 2014, a mummified young rhinoceros was discovered by two hunters, Alexander “Sasha” Banderov and Simeon Ivanov, at a tributary of the Semyulyakh River in the Abyysky District in Yakutia, Russia. Its head and horns, fur, and soft tissues were recovered. Some parts had been thawed and eaten, since they were not covered by permafrost. The body was handed over to the Yakutia Academy of Sciences, where it was named “Sasha” after one of its discoverers. Dental analysis shows that the calf was about seven months old at the time of its death. With its well-intact preservation, scientists proceeded to undergo DNA analysis.
Woolly rhinoceros