Not a bird scientist or a bird lawyer, but I can tell you that they know which direction to fly because they have a small amount of magnetite in their brains which they can use as a compass. They also appear to use landmarks like rivers, coastlines, and mountain ranges for more refined directions. As far as how they decide who leads, they just take turns. The lead bird will help break the air for the birds behind them making it easier for them to fly. When the lead bird tires, another will simply switch places with it until the cycle repeats and they get where they want to go.

That’s funny, I like to use “shark coochie”

Not a vet, but I imagine it looks like a perfectly healthy cat moping around like it’s about to die. I had a cat years ago that would get depressed anytime he would snap at my dog and then subsequently get snapped back at.

What’s the thing? Did they wear it as a hat to show how rich they were, being able to afford a pineapple?