Miners Pollute the Sea of Cortez / Beyond the Headlines / How to Raise Monarchs / Taggers at Work / Monarch Migration / The Value of Summer Camp / Guinea Fowl and Tick Control / BirdNote®: Do Birds Use Ants as Tools? Mining company Grupo Mexico has spilled millions of gallons of toxic mining chemicals and waste into the Sea of Cortez and rivers that feed into it, endangering people and the natural ecosystem. Now locals are demanding justice in the wake of the latest disaster.

Also, some people have fond childhood memories of raising monarch caterpillars in classrooms and at home. We've got some tips for ensuring monarch butterflies raised in captivity aren't led astray in their migration.

And deer ticks can carry Lyme disease, which is moving North, thanks to climate change. Now some homeowners in the thick of tick country are turning to an unusual tick control method: keeping a flock of guinea fowl.

Tick-eating machines and more, this week on Living on Earth from PRI.
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