The most recent observation involved a mother and pup. Luckily, I had a large zoom lens on my camera so I could watch and take pictures from far away without disturbing them, and then I cropped the photos for close-up views.
Here's the adult eating a long, slender fish:
Then the pup came along and took the tail end of the fish from the mother:
The mother left the little one to feed on its own while she continued fishing nearby:
P.S. If you can tell what type of fish the otters were eating, I'd love to know. Could it be a prickleback?