Bear Intelligence

[Vegeta San]

That's a good information @brotherbear. Yes I know they're smarter than many people thought. 

Not only in intelligence, but bears are also sharp in other senses. Sharper than some experts thought..

Vision: Bears see in color and have sharp vision close-up.  Their distance vision (over two hundred yards) has not been tested.

Hearing:  Hearing is the black bear’s first line of defense against danger because they can hear in all directions (unlike smell) and they can hear farther than they can see in brushy forest.  Their ears develop to full size more quickly than the rest of their body.   Their hearing is over twice the sensitivity of human hearing and exceeds human frequency ranges.

Smelling:  Their smelling ability is extremely good.   The limits are untested.  Their nasal mucosa area is about 100 times larger than in humans.
Source: https://www.bear.org/website/bear-pages/black-bear/basic-bear-facts/30-senses-a-abilities.html

Bears are thought to have the best sense of smell of any animal on earth. For example, the average dog’s sense of smell is 100 times better than a humans. A blood hound’s is 300 times better. A bear’s sense of smell is 7 times better than a blood hound’s or 2,100 times better than a human.
Source:https://www.google.com/amp/s/sectionhiker.com/bears_sense_of_smell/amp/

Eye vision: This is actually a common misconception. Yes, bears do have an amazing sense of smell, but it does not make up for a lack of vision because they actually have excellent eyesight. Bears can see just as well as humans do during the daytime, but it is during the night that their fantastic vision pulls out all the stops. Like your family’s dog or cat, bears have amazing night vision. There is a reflective membrane on the back of their eye called the tapetum lucidum which reflects light and causes light sensitive cells to react a second time to the light and therefore greatly enhances their vision at night. This is why if you see a picture of them at night, their eyes look greenish.
So don’t be fooled….those bears will probably see you before you see them!
Source: http://yellowstonebearworld.com/myth-1-bears-have-bad-eyesight

Another source of eye vision:
Some people think that bears’ amazing sense of smell must make up for a lack of vision. In fact, bears’ eyesight is at least as good as humans’.They also have excellent night vision due to a reflective membrane on the back of their eye.
Source:
http://blog.nwf.org/2013/12/5-myths-about-bears/

Although, I don't think they can easily get ambushed by bigcats as some experts thought. Bears are known to track tiger trails, right! Well, a predator tracking a predator will always be aware. For example jackals and other small scavengers. Unlike herbivores, bears has better senses and was intelligent.

Tigers are ambush predators, right. But you can see not every hunt of a tiger isn't ambush. They preyed on even bovines, face to face. Ursids are smarter and has better senses than bovids, though I don't think they can easily get ambushed. I honestly won't believe on tiger hunting bear theory suggested by some experts. I mean ambushes occurred in some cases but not all hunts are ambushes. It's safe to say less than half of the hunts might be ambushes. Because bears have amazing senses and are smarter. Maybe smarter than their predators (tigers)! Reply