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Name : Tufted ground squirrel ( Rheithrosciurus genus Macrotis )

Where it lives : On the ground and low arm of hilly forests in Borneo

Two pictures of a ground tufted squirrel in Borneo.

Tufted ground squirrels (Rheithrosciurus macrotis) have one of the most voluminous tails relative to body size among all mammals.

What it eats : Extremely hard seeds from a handful of tree species

Why it ’s awesome : Rumor has it that tufted priming squirrel , nicknamed " vampire " squirrels in a 2014 Sciencearticle , skip over down from gloomy offshoot onto the backs of deer and kill them by slash the jugular nervure with their razor - piercing teeth .

Local Dayak huntersreport findingdisemboweled cervid carcase and suspect the squirrels feast on their fair game ’s stomach content , heart and liver . In villages close to the timberland edge , tufted soil squirrels are also said to kill domestic chickens to eat their nerve and liver .

A reconstruction of an extinct Miopetaurista flying squirrel from Europe, similar to the squirrel found in the U.S.

But in 2020 , researchers discovered these squirrel are not bloodthirsty meat - eaters . alternatively , their unearthly dentition — which admit large incisors on both the upper and depleted jaw that have cryptical carve ridges like a saw — are used to eatextremely hard seeded player . " We ’re speak source so intemperately that a strong human with a mallet would have to process pretty heavily to get into one , " lead writer Andrew Marshall , a biological anthropologist at the University of Michigan , tell IFLscience at the time .

Related:30,000 - yr - previous pelt ball hidden in Canadian permafrost is actually a mummified squirrel

Tufted land squirrel also have spectacular , club - regulate seat that are 30 % big than their bodies — one of the most voluminous tails among all mammals , relative to body size of it . Scientists are unsure why the squirrels play such an exuberant appendage , but it ’s potential their tails protect them against predators , such as Sundaclouded leopards(Neofelis diardi ) , by confuse their small soundbox and puzzling potential killers .

Wandering Salamander (Aneides vagrans)

— flight squirrels in China have discovered a canny new thaumaturgy to store Nut for longsighted

— Viral video of deer eat on a snake in the grass is n’t as uncanny as you might think

— Borneo has a intercrossed ' mystery monkey , ' and research worker are concerned

A close-up of a Plains vizcacha

How these squirrels ended up in Borneo is a whodunit . Researchshows their closest living congener are a grouping of South American squirrel — but there is no sign of the zodiac of any other congener in either Asia or North America that could serve scientist delineate their journey to Southeast Asia .

A 2012studysuggests theRheithrosciuruslineage diverged from a group of Palearctic species some 36 million long time ago and colonized Borneo overland from Southeast Asia — but the tufted background squirrel ’s evolutionary history rest nebulous . ( Palearctic mention to a realm comprising Eurasia northwards of the Himalayas , northerly Africa and the temperate parts of the Arabian peninsula . )

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