A person frozen for 14,300 was dug in Siberia – and may have been an ancient pet.
The exceptionally well-preserved mud also gave a golden ticket to the scientists' past: the oldest "working copies of genes" ever found.
The ancient creature was found first road in 2015, buried in permafrost in Tumat
This is thought to be a canid – probably a wolf or a domesticated wolf creature.
The puppy is now being analyzed by a team of experts, leading to huge scientific advances.
DNA can survive thousands of years with the right conditions.
But RNA in living tissue is rapidly destroyed downstream by enzyme recycling.
This continued beyond death, so that researchers sought to isolate the RNA of an intact ancient cell.
RNA is the working copy of a gene that is extremely important.
While DNA Reveals What a D If a creature had, RNA can tell us which specific genes worked – and which were inactive.
But in a rare feat, researchers have been able to analyze RNA from the liver, cartilage, and muscle tissue
"Ancient DNA researchers were previously reluctant to try to sequence ancient RNAs because they are generally more unstable than DNA and more prone to enzymatic degradation, "explained Dr. Oliver Smith of Copenhagen University, who publishes the study in PLOS Biology.
"However, after our recent successes in sequencing ancient RNA from plant material, we speculated that a well-preserved animal specimen frozen in permafrost could simply retain enough material for consistency.
" To our delight we found that not only did we detect RNA from different tissues, but in some cases the signal was so strong that we could distinguish the tissues in a way that made biological sense.
What is RNA? A simple explanation
Here's what you need to know …
- RNA means ribonucleic acid
- It is different from DNA in that it contains a single strand – instead of two strands
- It is also made of different Chemicals to DNA
- But this is an effective chemical copy of DNA
- DNA contains the basic information that constitutes a cell
- But RNA is the active ingredient that does the work in cells
- They also carry coded construction instructions of proteins that is important to life
- All Live there is DNA and RNA on Earth, so research into its origins is important to understand how life originally came about
- It may also reveal secrets about how an animal evolved  Scientists believe that creature can if it was a pet.
This is because the Greyhound looks like a domesticated wolf-dog hybrid – suggesting human influence.
Other News: Recently "World's Oldest Animal" was discovered by ancient fats of 558 million years old Russian fossil.
A mysterious 520 million is a sea monster with tentacles emerging from its mouth.
Even the oldest animal footprints in the world reveal a bizarrely crazy creature that lived 550 million years ago.
What are you doing about this stunning discovery? Let us know in the comments!
We pay for your stories! Do you have a story for The Sun Online Tech & Science team? Email us at firstname.lastname@example.org