I found this vertebrae on a trip to Victoria, BC, right at the water's edge.

I've ruled out it belonging to a dolphin, porpoise, or whale so I'm leaning more towards a seal or similar marine mammal. But then again it could also belong to a wide arrange of land mammals and that it just happened to end up in the water.
So, as you can see, I'm in need of a bit of professional help on figuring out this puzzle...

Many thanks in advance.

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Hi Joyce,

a scale bar would be helpful, but the overall shape makes me think it's from a bird.