Sockeye salmon and more numerous eggs, better nest choice and ability to defend it, and the ability to bury eggs deeper and provide more protection. Females vary their breeding rate depending on the size of the courting male, mating more quickly with larger males. This increases the likelihood that larger males will displace attending, smaller males. Male sockeye salmon social status and greater reproductivity are directly associated with larger body size and more extreme body shapes; Larger bodies provide males with advantages when it comes to intrasexual competition and being selected for by females during reproduction. Males preferentially spawn with females who
What Makes a Battle What Makes a Battle What Makes a Battle was a propaganda short produced by the US Army Pictoral Service in 1944. It documents the taking of the Marshall Islands while also encouraging increased war production. The film opens with the narrator asking "What makes a battle?" while the camera is focusing on shipments of industrial transports, "This is what it takes to make a battle." This statement sets up the dual nature of the entire film. War supplies are pouring in from every part of the country, from every type of American "Republican and Democrat, white and colored." Industrial production