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It seems only meet that 2020 would be the year when we memorize thatgiant pandas , arguably the mown of all bears , enthusiastically roll inhorsemanure — the fresher the better — leaving their entire bodies generously cover in tonic feces .
But the pandas are doing it for a good ground ; these poo " tub " may help the bear keep quick in their hatful habitat , scientists recently disclose .
Compounds in fresh horse manure attracted pandas in China’s Qinling Mountains.
Researchers observed this stinky habit in wild Qinling jumbo panda ( Ailuropoda melanoleuca qinlingensis ) , a race that lives in the Qinling Mountains inChina ’s Shaanxi Province . The panda sniffed and wallow in piles of tonic Equus caballus droppings , and the frequency of their poop parties typically peaked when temperatures were modest , according to a newfangled field .
colligate : In photos : The life of a giant Ailuropoda melanoleuca
In 10 years of observing the Qinling pandas in the wild , scientist began to note that the bears would frequently exhibit sure behaviors when they see smart cavalry dung . They would sniff the manure ; rub against the manure with their cheeks ; swan in the manure ; and finally smear the manure over their body .
That is not dirt.
To good interpret what the red panda were doing , the researchers put in 24 infrared camera traps in a protected area of the Qinling Mountains where more than 20 pandas lived , recording 38 example of giant panda ' poo parties between July 2016 and June 2017 .
" We were surprised to find that the captured case take place in sealed calendar month but not the whole year , implying a pattern of seasonal behavior , " they wrote in the subject area , publish Dec. 7 in the journalProceedings of the National Academy of Sciences .
Poop roll happened most often between November and April , and about 95 % of the BM festivities happened when temperatures were below 59 degrees Fahrenheit ( 15 degree Anders Celsius ) . No poop - rolling go on when temperature were high than 68 F ( 20 C ) , according to the study .
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But what could explicate the pandas ' fecal attraction ? The scientists suspected that it might have something to do with two compound that are plentiful in fresh horse manure — which the Ailuropoda melanoleuca preferred — but are scarce in elderly dung : genus Beta - caryophyllene ( BCP ) and caryophyllene oxide ( BCPO ) . To confirm this druthers , the researchers tested captive pandas in the Beijing Zoo using artificial muckheap made of hay , and the captive giant panda " frequently visited " the dunghills treated munificently with BCP and BCPO , but showed little interest in dunghills that were n’t saturate with the compound .
Because the panda ’s poo - peal was seasonal , the scientist query if temperature might be a component , and they found that mice process with BCP and BCPO were less susceptible to common cold . It ’s possible that the nerve close in pandas ' peel contain sense organ for the compounds ; rolling in poo would then temporarily make the cat bear less sore to wintertime ’s chill , the researcher reported .
Wild pandas may have been introduced to this unexpected benefit by ancient trade itinerary in China that bisected their mountain habitats during the fourth 100 B.C. , the scientists wrote . With horses a ceaseless presence on the road from the Kingdom of Shu ( in what is now Sichuan Province ) to the uppercase city of Chang’an ( known today as Xi’an , the capital of Shaanxi Province ) , pandas would have acclimated over time to the fragrance of buck manure , conduce them to investigate and finally discover a smelly wages for their curiosity , according to the field .
Originally bring out on Live Science .
