Might have been the other mob below on allies list the kodiak,he fears and casts a mean proc.Then again he might be one no one has killed yet.Could be 2 different types a large kodiak and a large grizzly both with there own loot tables.BTW the kodiak is a mean one.
I had the oddest experience with this mob yesterday. Just after I told my guild how much I like tanking the animals in BK I see this mob. So with my 81 chanter pet and a merc healing I attack a large grizzly. Next thing I know I have been feared and by the time it is over my pet and merc are dead with the grizzly hot on my tail. Can't think of anything else that would of feared me, so just a heads up.