Two stories from the BBC News Science area plus one.

The idea that the ink from a fossilized squid is usable is fascinating.

I know I've told this story before, but it's a good one. When I was a child living in London, the Thames was horribly polluted. The British clean water act (I don't know its name) was passed when I was seven. It was made clear that there would be no recovery in my lifetime. The earliest hope they had for fish to return was a century away. I returned to London twelve years later for college, and people were catching fish. They weren't edible, but fish had already returned.

Fifteen years ago, France passed its Clean Water Act for the Seine. Salmon are being caught in the Seine.

Also, for the first time in decades, Atlantic salmon were caught in the Salmon River near Albany.