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After a quarter century in regulatory limbo, genetically modified salmon is finally swimming migrating making its way to seafood aisles across Canada. The fish, which grows roughly twice as fast as a wild salmon, was first demonstrated in 1989, but concerns about safety kept it off the market.

In 2015, the U.S. and Canada controversially declared that the fish was safe for human consumption, but debates over labelling have stalled the U.S. roll-out.

Why it matters: Global demand for seafood is skyrocketing, and in some markets fish is a primary source of protein. Some advocates believe that GMO fish can help supply meet demand, but others worry that escaped fish (which AquaBounty notes are sterile) could contaminate wild fish stocks. GMO fish could also pave the way for other genetically modified meats, like beef and chicken.

What they did: AquaBounty, the Massachusetts-based company that created the fish, modified Atlantic salmon with a growth hormone gene from massive Chinook salmon, and a gene that regulates the production of an antifreeze protein in the ocean pout. Combined, the modified salmon constantly produces low levels of growth hormone, according to Nature.

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6 mins ago - Health

At least 48 local public health leaders have quit or been fired during pandemic

Former California public health director Dr. Sonia Angell on Feb. 27 in Sacramento, California. Photo: Justin Sullivan/Getty Images

At least 48 local and state-level public health leaders have retired, resigned or been fired across 23 states since April, according to a review by the AP and Kaiser Health News.

Driving the news: California public health director Dr. Sonia Angell resigned on Sunday without explanation, a few days after the state fixed a delay in reporting coronavirus test results that had affected reopenings for schools and businesses, AP reports.

House will not hold votes until Sept. 14 unless stimulus deal is reached

Photo: Mandel Ngan/AFP via Getty Images

House Majority Leader Steny Hoyer (D-Md.) announced Monday that the House will not hold any floor votes until Sept. 14, though members will remain on 24-hour notice to return to Washington in case a deal on coronavirus stimulus is reached.

Why it matters: Democrats and the Trump administration remain deadlocked and have not met since negotiations broke down without a deal on Friday.

Updated 48 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 3 p.m. ET: 19,936,547 — Total deaths: 732,467 — Total recoveries — 12,144,510Map.
  2. U.S.: Total confirmed cases as of 3 p.m. ET: 5,063,770 — Total deaths: 163,156 — Total recoveries: 1,656,864 — Total tests: 61,792,571Map.
  3. Business: Richer Americans are more comfortable eating out.
  4. Public health: How America can do smarter testing.
  5. Sports: The cost of kids losing gym class — College football is on the brink.
  6. World: Europe's CDC recommends new restrictions amid "true resurgence in cases."