The lion's death wasn't the only shocking poaching incident this week, as five elephants were slaughtered in Kenya.
Now many are wondering what’s going on, because from 1986 to 2010, there were no deadly encounters with grizzlies.
Jeff Hull set out to answer those questions in the June issue of Outside Magazine. What he found was a fairly simple answer: There are more people visiting Yellowstone, and because of a successful recovery program, there are also more bears.
The number of grizzlies in the Yellowstone region has jumped from 136 in 1975 to 602 in 2010. So human-bear encounters are no longer rare occurrences and people are not heeding warnings about what to do if they meet up with a grizzly in the wild.