Contrary to previous paradigms, we demonstrate that blue whales are not indiscriminate grazers but instead switch foraging strategies in response to variation in prey density and depth to maximize energetic efficiency. (sea-inc.net)
Perhaps cold stifles hormones and / or cell division and causes energetic efficiency? (nutritionfacts.org)
Since then we have continuously striven after harmonizing functionality, economics well as energetic efficiency, and environmental compatibility. (peakbp.net)