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Eighty percent of the world's nations eat insects of 1,000 to 2,000 species. [10] [11] FAO has registered some 1,900 edible insect species and estimates that there were, in 2005, some two billion insect consumers worldwide. FAO suggests eating insects as a possible solution to environmental degradation caused by livestock production. [12]
Insects as food or edible insects are insect species used for human consumption. [1] Over 2 billion people are estimated to eat insects on a daily basis. [ 2 ] Globally, more than 2,000 insect species are considered edible, though far fewer are discussed for industrialized mass production and regionally authorized for use in food.
Trophallaxis: eating food regurgitated by another animal Zoopharmacognosy : self-medication by eating plants , soils , and insects to treat and prevent disease. An opportunistic feeder sustains itself from a number of different food sources, because the species is behaviourally sufficiently flexible.
"Eat your bugs - harvesting edible stink-bugs". Science in Africa. Archived from the original on 16 April 2011. Menzel, Peter; D'Aluisio, Faith (1998). Man Eating Bugs: The Art and Science of Eating Insects. Ten Speed Press. ISBN 978-1-58008-022-4. Nejame, Sam. "Man Bites Insect" New York Times Sunday Magazine. 10 February 2008.] Dicke, Marcel.
The "Spanish fly", Lytta vesicatoria, has been considered to have medicinal, aphrodisiac, and other properties. Human interactions with insects include both a wide variety of uses, whether practical such as for food, textiles, and dyestuffs, or symbolic, as in art, music, and literature, and negative interactions including damage to crops and extensive efforts to control insect pests.
An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...
These activities help in improving soil health and fertility. [55] Insects again serve as a source of food for other organism such as reptiles, bird , amphibians, fishes and many others. [56] Insects are also involved in the transfer of vector borne disease which accounts for approximately 700,000 death annually. [57]
The development of insect mouthparts from the primitive chewing mouthparts of a grasshopper in the centre (A), to the lapping type (B) and the siphoning type (C). Legend: a - antennae c - compound eye lb -labium lr - labrum md - mandibles mx - maxillae. The insect mouthparts consist of the maxilla, labium, and in some species the mandibles.