A marine biologist tracks a humpback whale’s energy expenditure. If it swims 10 km/h for 5 hours, burning 500 kcal/hour, how many kcal are burned?
["Tracking Energy Expenditure: How Much Kilocalories Does a Humpback Whale Burn Swimming 10 km/h for 5 Hours?", "Understanding the energy costs behind animal movements is vital for marine biologists studying whale behavior, conservation, and ecology. Recently, a marine biologist conducted a detailed analysis to track the energy expenditure of a humpback whale during sustained swimming—an important piece of data for understanding the metabolic demands of these ocean giants.", "### The Scenario: Sustained Swimming by a Humpback Whale\nIf a humpback whale swims at a consistent speed of 10 km/h for 5 hours and burns energy at a rate of 500 kcal per hour, scientists use straightforward arithmetic to calculate total energy burned. But let’s break it down step by step to clarify and highlight key insights.", "### Calculating Total Kilocalories Burned", "- Swimming speed: 10 km/h\n- Duration of swimming: 5 hours\n- Energy expenditure rate: 500 kcal/hour", "To find total energy spent, multiply the hourly energy burn by the time:", "[\n\ ext{Total kcal} = \ ext{Energy per hour} \ imes \ ext{Time}\n]\n[\n\ ext{Total kcal} = 500 , \ ext{kcal/hour} \ imes 5 , \ ext{hours} = 2,500 , \ ext{kcal}\n]", "### What This Means in Marine Biology", "This calculation reveals that the humpback whale expends 2,500 kilocalories during a 5-hour swimming session under these conditions. For marine biologists, such precise data helps model energy budgets, migration endurance, and feeding strategies. It also aids in assessing how environmental changes—like shifts in food availability or ocean currents—might impact whale health and survival.", "Humpback whales undertake incredible long-distance migrations, often swimming hundreds of kilometers, and understanding their energy demands is crucial for protecting these majestic creatures. By tracking energy expenditure, researchers gain deeper insight into the physiological limits and ecological needs of marine mammals in a changing ocean.", "---", "In summary: A humpback whale swimming continuously at 10 km/h for 5 hours—burning 500 kcal per hour—burns exactly 2,500 kcal. This simple yet powerful calculation not only illustrates metabolic demands but also guides conservation efforts in marine biology."]
