HOKKAIDO, Jun 07 (News On Japan) –
A bear generally known as OSO18, which attacked greater than 60 cattle in japanese Hokkaido, has been revealed to be an unusually excessive carnivore, primarily feeding on Ezo deer.
Nicknamed the “monster” and “ninja” bear, OSO18 terrorized dairy farmers in japanese Hokkaido earlier than being killed in 2023. Researchers from Fukui Prefectural University and different establishments analyzed the bones of roughly 600 bears throughout Hokkaido, together with OSO18, and found that whereas bears are usually omnivorous, OSO18 persistently ate Ezo deer and different animals from age 3 till it was killed at age 9.
“It’s normal for bears to eat deer when they come across carcasses, but OSO18 was feeding on them year-round,” stated Associate Professor Matsubayashi Jun of Fukui Prefectural University.
Although the rationale behind this conduct is unclear, comparable consuming patterns had been additionally noticed in different bears culled close to Shibecha Town, the place OSO18 was energetic.
OSO18 was a brown bear that grew to become notorious throughout Japan for a sequence of violent cattle assaults in japanese Hokkaido, notably across the city of Shibecha within the Kushiro area. The title “OSO18” was derived from the code assigned by authorities: “OSO” for the Osotsubetsu space the place it was first detected, and “18” indicating it was the 18th bear recorded in that space. Sightings and DNA traces linked to OSO18 started round 2016, and over the next years it was confirmed to have attacked and killed greater than 60 head of cattle. This made it one of the vital harmful bears in fashionable Japanese historical past, and it rapidly gained nationwide consideration. Locals and media dubbed it a “monster” or “ninja” bear on account of its elusiveness and skill to evade quite a few seize makes an attempt regardless of using traps, drones, infrared cameras, and even sniper patrols.
OSO18 developed an unusually lengthy observe file of livestock predation, which is uncommon for brown bears, as most keep away from extended contact with people or massive livestock. It operated primarily beneath cowl of darkness, not often forsaking clear tracks or pictures, making it terribly tough for authorities to foretell or entice. The bear additionally demonstrated uncommon conduct for its species—whereas brown bears are typically omnivorous and opportunistic feeders, OSO18 had developed a sustained choice for searching massive animals, particularly cattle. Some specialists speculated that the bear had developed discovered conduct, probably linking the sound of electrical fences or the odor of ranch areas with straightforward prey. Its assaults usually left behind barely eaten carcasses, resulting in theories that the killings had been pushed by extra than simply starvation.
After years of failed makes an attempt to trace and kill it, OSO18 was lastly shot and killed in July 2023 by a licensed hunter working in coordination with native authorities. The affirmation got here by means of DNA testing, which matched the bear to earlier cattle assaults.
Related: Killer ‘Ninja Bear’ meat not so grisly
Source: 北海道ニュースUHB