Sockeye salmon natural selection against large bodies. Populations with higher levels of predation tend to evolve smaller body size. Without the threat of predation, salmon that breed early in the season live longer than those that breed late in the season. Other ecological factors like stranding effect select for smaller body size in sockeye salmon when present in a habitat. Stranding is when salmon swim into dry land or shallow water during their migration for spawning and die from suffocation. In fact, studies show that the Sockeye salmon with the largest bodies are most susceptible to stranding mortality. Reproduction is marked by
Be Careful What You Fish For Be Careful What You Fish For "Be Careful What You Fish For" is the fourteenth episode of the tenth season of the animated comedy series "Family Guy". The episode originally aired on Fox in the United States on February 19, 2012. When Peter and the guys try to salvage a sunken Mercedes-Benz, Peter half-heartedly promises a favor to a helpful dolphin. Soon, the dolphin moves to Quahog but outstays his welcome at Peter's. Peter tries to reunite the dolphin with his ex-wife in hopes that he will return to the ocean. This episode was written by Steve Callaghan and directed