Why would you want to omit that part?
That said, this title is a poor attempt at communication.
The Chinese paddlefish, one of world's largest fish, has gone extinct *because of Yangtze dam*
The problem is this part: Paddlefish, largest, from spawn, now extinctExample: I touched off a bit of a “seems bait-y” pas de deux/do-si-do with the bot/mods re a BBC headline a while back. It’s towards the bottom (where it surely belongs) of this thread - https://news.ycombinator.com/item?id=26552375
Though even there, it's... not great, as most people will probably read Yangtze dam as the Three Gorges Dam.
For titles, finding (or manufacturing) one that's clearer based on actual article text is a common alternative. I've suggested "Chinese paddlefish has gone extinct due to overfishing and dams" to the moderators. (Much of that phrase occurs within the article.)
https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
For reference when it inevitably gets changed, it’s currently “Yangtze dam separates Paddlefish, largest, from spawn, now extinct”.
Original title is:
The Chinese paddlefish, one of world's largest fish, has gone extinct
Subtitle is:
Native to China’s Yangtze River, these fish grew 23 feet in length, but haven’t been spotted since 2003.