Weddell seals live in the Antarctic and feed on fish during long deep dives in freezing water. The seals benefit from these feeding dive, but the food they gain comes at a metabolic cost (the dives are strenuous). A set of researchers wanted to know whether feeding was also energetically expensive, over and above the exertion on a regular dive. They determined the metabolic cost of dives by measuring oxygen use of seals as they surfaced for air after a dive. For each of the 10 animals, researchers measured the metabolic cost of a feeding dive and a non-feeding dives. Based on the data, does feeding increase the metabolic costs of a dive?