The National | Oct 19, 2013 | 2:28

Zebra mussels in Manitoba

There's concern over an invasive species now in Manitoba's largest lake. Cameron MacIntosh reports.

Now Playing on CBC Radio Help Refresh

Live audio streams for phones and tablets: Radio One and CBC Music (Radio 2, Radio 3 and more)

CBC Radio One

Listen Live Ottawa change

CBC Radio 2

Listen Live Eastern change

CBC Radio 3

Listen Live Radio 3
The National - Charleston horrorJun 18, 2015 | 4:10The National Charleston horror Video
The National Charleston horror Jun 18, 2015 | 4:10Allegedly bent on hate, Dylann Roof is accused of fatally shooting nine people at a historic black church in Charleston, S.C.
The National - Opposition hammers Tories on Mint travel expensesJun 17, 2015 | 2:50The National Opposition hammers Tories on Mint travel expenses Video
The National Opposition hammers Tories on Mint travel expenses Jun 17, 2015 | 2:50Policies authorizing spousal travel and trips to post-conference events are no longer permitted, says Finance Minister Joe Oliver
The National - 'Anonymous' hacks Canadian government websitesJun 17, 2015 | 2:54The National 'Anonymous' hacks Canadian government websites Video
The National 'Anonymous' hacks Canadian government websites Jun 17, 2015 | 2:54Online hacker group says the cyberattack was protest over Ottawa's anti-terror Bill C-51
The National - Gen. Tom Lawson on the defensiveJun 17, 2015 | 3:59The National Gen. Tom Lawson on the defensive Video
The National Gen. Tom Lawson on the defensive Jun 17, 2015 | 3:59Canada's chief of the defence staff faces a barrage of criticism for his comments on why sexual harassment is still an issue in the military
The National - Does Canada matter on the world stage?Jun 17, 2015 | 13:55The National Does Canada matter on the world stage? Video
The National Does Canada matter on the world stage? Jun 17, 2015 | 13:55In this rough, tough, dangerous landscape of geopolitics, does Canada matter?
The National - Canadian Mint staff luxuryJun 17, 2015 | 5:38The National Canadian Mint staff luxury Video
The National Canadian Mint staff luxury Jun 17, 2015 | 5:38Royal Canadian Mint staff soaked up the sun and dined at a luxury theme park during an expenses-paid trip to a five-star Mexican resort
The National - Backlash over airport screening of turbansJun 16, 2015 | 2:52The National Backlash over airport screening of turbans Video
The National Backlash over airport screening of turbans Jun 16, 2015 | 2:52A controversial airport screening policy has been reversed. It put people wearing religious headgear through an extra layer of security.
The National - Gen. Tom Lawson InterviewJun 16, 2015 | 19:06The National Gen. Tom Lawson Interview Video
The National Gen. Tom Lawson Interview Jun 16, 2015 | 19:06Canada's Chief of the Defence Staff Gen. Tom Lawson sits down with Peter Mansbrige.
The National - Anglican Church apologizes for keeping quiet about priest's sexual abuseJun 15, 2015 | 2:30The National Anglican Church apologizes for keeping quiet about priest's sexual abuse Video
The National Anglican Church apologizes for keeping quiet about priest's sexual abuse Jun 15, 2015 | 2:30Gordon Nakayama's crimes not made public for two decades
The National - Shark attacks injure 2 in North CarolinaJun 15, 2015 | 2:45The National Shark attacks injure 2 in North Carolina Video
The National Shark attacks injure 2 in North Carolina Jun 15, 2015 | 2:45The young victims were in waist-deep water just 20 metres from shore
The National - Jeb Bush's bid for presidentJun 15, 2015 | 2:56The National Jeb Bush's bid for president Video
The National Jeb Bush's bid for president Jun 15, 2015 | 2:56Former Florida governor joins crowded race, vows to 'take command of our future'
The National - London subway expansionJun 15, 2015 | 2:54The National London subway expansion Video
The National London subway expansion Jun 15, 2015 | 2:54London is doing a massive expansion on its iconic subway system.
The National - Renting vs. buying a homeJun 15, 2015 | 2:11The National Renting vs. buying a home Video
The National Renting vs. buying a home Jun 15, 2015 | 2:11Canada's average house price has hit a new high, which has some choosing to rent.
The National - How Mexico is winning the car manufacturing warJun 15, 2015 | 13:31The National How Mexico is winning the car manufacturing war Video
The National How Mexico is winning the car manufacturing war Jun 15, 2015 | 13:31Mexico's auto sector is booming, while Canada's is dwindling. Amanda Lang finds out why.
The National - Amanda Lindhout wept at word of arrestJun 14, 2015 | 3:55The National Amanda Lindhout wept at word of arrest Video
The National Amanda Lindhout wept at word of arrest Jun 14, 2015 | 3:55Former hostage thankful to RCMP for arresting Ali Omar Ader, accused of being one of her kidnappers

4 of 34