Snowbirds jets grounded, potentially deadly mosquitoes, new advances on cancer, and more

The Snowbirds, Canada’s iconic acrobatic flying team, is headed for its final landing. Its jets are so old there are no spare parts and they’re becoming unsafe. Ottawa says new planes are being ordered, but it’s suspending operations in the meantime. Some say that long pause could make it impossible to start up again.Also: More and more mosquitoes are exposing Canadians to deadly diseases. Thank the warming climate for that. Some experts say there may be a case for trying to wipe out the entire species.And: The good news about cancer is that two new drugs are making inroads on prevention and treatment. One of them is familiar; it’s GLP-1, also known as Ozempic.Plus: Fire breaks are usually chunks of forest chopped down to stop wildfires from threatening populated areas. But in the Northwest Territories, people are experimenting with using them for things like garden patches and skating rinks.