We are a truly vile species sometimes:

A California sea lion last week became the first salmon predator to be euthanized this year under a program that has been denounced by those who say there are far greater dangers to salmon - including the series of hydroelectric dams on the Columbia. … Last year, 11 sea lions were euthanized. Another four were transferred to zoos or aquariums.

… The sea lions represent a massive he adache each year as chinook salmon begin arriving at the Bonneville Dam east of Portland, congregating in large numbers as they return from the ocean. Sea lions have become keenly aware that the dam is a great spot to feast on salmon, easy pickings as they wait to go up the dam's fish ladders.

Leaving aside that I highly doubt this issue wasn’t raised in the environmental survey prior to the damn being built, we basically created a giant food bowl, filled it with a delicious endangered species, and then decided to kill all animals that availed of the tasty morsels.  Well, all except the poor fisherman “who have watched sea lions snatch salmon right out of their gill nets.”

And just for the record – ‘euthanized’?  Really?!