Following that up with this article from NOAA about the incidence of wild dolphin deaths resulting from recreational fishing gear (informative article, but fyi it's a pdf). I recommend reading the whole article, but the quick overview is that they were finding an increase in dead, stranded dolphins that had ingested fishing gear such as hooks and monofilament line. The article goes in depth, but one possible cause of this is that dolphins were resorting to stealing bait or game fish off of fishing lines due to depletion of fish populations that resulted in difficulty finding enough food. I'm using this as an example to illustrate that...it's a dangerous world out there. It truly sucks, but humans are destroying habitats and trashing the environment at an incredible rate and it's having serious consequences for wildlife.