Dave Neiwert has his vacation Orca report
up, and I have enjoyed his encounters over the years.
A major problem for orcas and other mammals that live in the oceans are the large nets lost from the major fishing fleets, but we are reminded that other mammals, humans, can also be victims of these nets by the situation of the Russian rescue submersible off the coast of the Kamchatka Peninsula. The vessel is apparently entangled in a fishing net.
The CBC has an article, Reports conflict on whether stranded Russian mini-sub has been hooked
, on the efforts to rescue the crew.