Why, I wonder, should the popularity of a news story matter to me? Does it mean it's a good story or just a seductive one?
The fact that dogs are not people means you don't have as much response to the particulars.
Animals can seem more pure. Without complication, I mean, animals are selfless. What animals do for us, they do out of instinct.
I think the real reason is that life has no meaning. I mean, no obvious meaning. You wake up, you go to work, you do stuff. I think everybody's always looking for something a little unusual that can preoccupy them and help pass the time.
Writing about unknown people means I spend a lot of time arguing to the reader about why it's worth knowing about them. That's challenging, but then the piece is pure discovery.
Writing about someone well known removes that obligation of defending it as a subject, but it also means that some of the surprise and freshness is already gone. It's so different - in some ways much harder for me.