https://www.cnet.com/news/in-apple-wwdc-2018-intro-vid-developer-species-makes-epic-journey/

A voice that sounds an awful lot like acclaimed English narrator David Attenborough calmly leads viewers through a four-minute video featuring a migration unlike any they've seen before. 

Instead of salmon spawning or birds returning to roost, the migrators here are developers, making their way to the Apple Worldwide Developers Conference, which kicked off Monday in Silicon Valley.