Sockeye salmon are red, which is the usual color of females. Even small changes in wavelength, saturation, and brightness can affect preference. Both sexually naïve males and experienced males showed the same preferences, which illustrates that preference for a red hue may be innate. Some traits that lead to reproductive success, such as body size and sexual dimorphism can affect one’s survival. This leads to opposing pressures of natural selection and sexual selection. Larger males are favored, unless the risk of predation is very high. Sockeye salmon that die prematurely from predation are typically the larger ones in a population. This shows
Sockeye Fire By the morning of Monday, June 15, the fire had grown to over , and had destroyed 40–45 structures, roughly half of which were primary homes occupied by local residents, with the other half being described as "secondary structures". Local schools and churches were used as emergency shelters. In addition to Willow, air quality has been affected in the communities of Nancy Lake, Houston, and Big Lake. The Sockeye Fire has impacted the sled dog teams living in the area, with as many as 4,500 dogs moved away from the impacted areas. Other sled dogs, owned by local participants of