aggregatum allium-cepa banana-shallots brown bulbs bulk Cuisse-de-Poulet-du-Poitou cuissen cultivars delicate-piquancy echalions edible elongated flavonoids flavor flavour food gourmet gourmet-cooking hardy healthy heritage-variety layers mild nutritious odor odour onion-shallot-cross onions paper-thin papery-skin peel peeling pink-skinned-bulbs pink-tinge piquant pungent quantity raw shallot-onion-cross skins sweet tasty thin torpedo-shaped torpedoes Turkish-onion vegetable zebrune alligator-gar-fish ambush-predators animal aquarium aquatic atractosteus-spatula carnivores distinctive-snout fish freshwater-fish gar habitat-destruction large largest-garfish piscivorous predator-fish primarily-piscivores primitive-fish river river-fish riverine Singapore Southern-United-States stalking-predators unusual voracious water zoo