I’ve been watching Planet Earth on Blu-ray since Ashley got it for my birthday, and it’s amazing. The only downside is that, since it takes on such a huge topic (the entire earth) there isn’t as much depth and I’m left with a lot of questions.

What I’ve been really curious about is the group dynamics of some of the huge herds/flocks/packs that they showcase. There’s one scene where tens of thousands of geese are shown taking flight from a lake, and I thought, who decides when it’s time to go? Is it like the slow clap where one starts and everyone follows? Does the not-very-cool goose try to get everyone to take off with him but then returns to his spot after circling a minute or two and pretends he just wanted to stretch his wings?