1 Fish ladders had to be built in the dams to assist the salmon returning to spawn in their native streams.
2 The rub is that Google owns several patents related to MapReduce and other data center technologies that have spawned widely used open source projects
3 The same glacier spawned an iceberg twice that size two years ago. Together, the breaks made a large change that's got the attention of researchers.
4 The site's constant stream of experiences, opinions and sentiments has spawned a vast commercial ecosystem, serving up putative insights to product developers, Hollywood studios, major retailers and other investors.
5 The new economic freedom has spawned hundreds of new small businesses.
6 New technology has spawned new business opportunities.