brisling bristling calcium can canned clupeidae edible European-sprats fatty-acids fish food golden health healthy heart-healthy herring-family herring-like marine-fish nonperishable nutrient-rich nutrients nutritious oil oily-fish omega-3 packed polyunsaturated portable potential self-contained-food skipper small smoked sprats sprattus-sprattus tightly-packed tin tinned tins vitamins animals Asian-elephant boulder brisles bristly calf Calves captive electric-fence elephant elephant-hide elephant-side elephants elephas-maximus fence fenced-in hair hairy herbivore Indian-elephant large largest-terrestrial-mammal mammal mammals play playful pushing rock rocks skin sociable strength strong texture textures tree-trunks trunk wiry wrinkled wrinkles young youngsters zoo can-opener