WEBVTT 00:00:09.416 --> 00:00:10.213 For centuries, 00:00:10.213 --> 00:00:12.148 people have consumed bugs, 00:00:12.148 --> 00:00:13.497 everything from beetles 00:00:13.497 --> 00:00:14.454 to caterpillars, 00:00:14.454 --> 00:00:15.375 locusts, 00:00:15.375 --> 00:00:16.206 grasshoppers, 00:00:16.206 --> 00:00:17.500 termites, 00:00:17.500 --> 00:00:18.328 and dragonflies. 00:00:18.328 --> 00:00:20.144 The practice even has a name: 00:00:20.144 --> 00:00:21.425 entomophagy. 00:00:21.425 --> 00:00:23.304 Early hunter-gatherers probably learned 00:00:23.304 --> 00:00:24.600 from animals that foraged 00:00:24.600 --> 00:00:26.318 for protein-rich insects 00:00:26.318 --> 00:00:27.766 and followed suit. 00:00:28.351 --> 00:00:29.089 As we evolved 00:00:29.089 --> 00:00:31.531 and bugs became part of our dietary tradition, 00:00:31.531 --> 00:00:32.557 they fulfilled the role 00:00:32.557 --> 00:00:34.025 of both staple food 00:00:34.025 --> 00:00:35.392 and delicacy. 00:00:35.392 --> 00:00:36.523 In ancient Greece, 00:00:36.523 --> 00:00:39.274 cicadas were considered luxury snacks. 00:00:39.274 --> 00:00:41.312 And even the Romans found beetle larvae 00:00:41.312 --> 00:00:43.040 to be scrumptious. 00:00:43.040 --> 00:00:45.149 Why have we lost our taste for bugs? 00:00:45.149 --> 00:00:47.995 The reason for our rejection is historical, 00:00:47.995 --> 00:00:49.565 and the story probably begins 00:00:49.565 --> 00:00:52.797 around 10,000 BC in the Fertile Crescent, 00:00:52.797 --> 00:00:54.272 a place in the Middle East 00:00:54.272 --> 00:00:56.781 that was a major birthplace of agriculture. 00:00:56.781 --> 00:00:59.331 Back then, our once-nomadic ancestors 00:00:59.331 --> 00:01:01.357 began to settle in the Crescent. 00:01:01.357 --> 00:01:03.048 And as they learned to farm crops 00:01:03.048 --> 00:01:04.670 and domesticate animals there, 00:01:04.670 --> 00:01:06.108 attitudes changed, 00:01:06.108 --> 00:01:07.784 rippling outwards towards Europe 00:01:07.784 --> 00:01:09.554 and the rest of the western world. 00:01:09.554 --> 00:01:10.863 As farming took off, 00:01:10.863 --> 00:01:13.964 people might have spurned bugs as mere pests 00:01:13.964 --> 00:01:15.532 that destroyed their crops. 00:01:15.532 --> 00:01:16.558 Populations grew, 00:01:16.558 --> 00:01:18.391 and the West became urbanized, 00:01:18.391 --> 00:01:21.192 weakening connections with our foraging past. 00:01:21.192 --> 00:01:23.779 People simply forgot their bug-rich history. 00:01:23.779 --> 00:01:26.687 Today, for people not accustomed to entomophagy, 00:01:26.687 --> 00:01:28.280 bugs are just an irritant. 00:01:28.280 --> 00:01:29.910 They sting and bite 00:01:29.910 --> 00:01:31.240 and infest our food. 00:01:31.240 --> 00:01:33.716 We feel an "ick factor" associated with them 00:01:33.716 --> 00:01:34.552 and are disgusted 00:01:34.552 --> 00:01:37.142 by the prospect of cooking insects. 00:01:37.142 --> 00:01:40.465 Almost 2,000 insect species are turned into food, 00:01:40.465 --> 00:01:42.566 forming a big part of everyday diets 00:01:42.566 --> 00:01:45.358 for two billion people around the world. 00:01:45.358 --> 00:01:48.720 Countries in the tropics are the keenest consumers 00:01:48.720 --> 00:01:50.376 because culturally it's acceptable. 00:01:50.376 --> 00:01:52.238 Species in those regions are also large, 00:01:52.238 --> 00:01:52.915 diverse, 00:01:52.915 --> 00:01:55.489 and tend to congregate in groups or swarms 00:01:55.489 --> 00:01:57.894 that make them easy to harvest. 00:01:57.894 --> 00:01:59.879 Take Cambodia in southeast Asia 00:01:59.879 --> 00:02:02.344 where huge tarantulas are gathered, 00:02:02.344 --> 00:02:02.933 fried, 00:02:02.933 --> 00:02:04.462 and sold in the marketplace. 00:02:04.462 --> 00:02:05.501 In southern Africa, 00:02:05.501 --> 00:02:08.666 the juicy mopane worm is a dietary staple, 00:02:08.666 --> 00:02:10.080 simmered in a spicy sauce 00:02:10.080 --> 00:02:12.578 or eaten dried and salted. 00:02:12.578 --> 00:02:14.404 And in Mexico, chopped jumiles 00:02:14.404 --> 00:02:17.253 are toasted with garlic, lemon, and salt. 00:02:17.253 --> 00:02:19.654 Bugs can be eaten whole to make up a meal 00:02:19.654 --> 00:02:22.207 or ground into flour, powder, and paste 00:02:22.207 --> 00:02:23.312 to add to food. 00:02:23.312 --> 00:02:24.935 But it's not all about taste. 00:02:24.935 --> 00:02:26.443 They're also healthy. 00:02:26.443 --> 00:02:28.908 In fact, scientists say entomophagy 00:02:28.908 --> 00:02:30.681 could be a cost-effective solution 00:02:30.681 --> 00:02:33.527 for developing countries that are food insecure. 00:02:33.527 --> 00:02:36.490 Insects can contain up to 80% protein, 00:02:36.490 --> 00:02:38.337 the body's vital building blocks, 00:02:38.337 --> 00:02:40.880 and are also high in energy-rich fat, 00:02:40.880 --> 00:02:41.456 fiber, 00:02:41.456 --> 00:02:44.288 and micronutrients like vitamins and minerals. 00:02:44.288 --> 00:02:46.052 Did you know that most edible insects 00:02:46.052 --> 00:02:47.252 contain the same amount 00:02:47.252 --> 00:02:50.247 or even more mineral iron than beef, 00:02:50.247 --> 00:02:52.254 making them a huge, untapped resource 00:02:52.254 --> 00:02:54.694 when you consider that iron deficiency 00:02:54.694 --> 00:02:56.977 is currently the most common nutritional problem 00:02:56.977 --> 00:02:58.422 in the world? 00:02:58.422 --> 00:03:00.555 The mealworm is another nutritious example. 00:03:01.492 --> 00:03:04.168 The yellow beetle larvae are native to America 00:03:04.168 --> 00:03:06.094 and easy to farm. 00:03:06.094 --> 00:03:08.007 They have a high vitamin content, 00:03:08.007 --> 00:03:09.135 loads of healthy minerals, 00:03:09.135 --> 00:03:12.001 and can contain up to 50% protein, 00:03:12.001 --> 00:03:15.254 almost as much as in an equivalent amount of beef. 00:03:15.254 --> 00:03:17.846 To cook, simply saute in butter and salt 00:03:17.846 --> 00:03:19.570 or roast and drizzle with chocolate 00:03:19.570 --> 00:03:21.090 for a crunchy snack. 00:03:21.090 --> 00:03:22.808 What you have to overcome in "ick factor," 00:03:22.808 --> 00:03:24.429 you gain in nutrition 00:03:24.429 --> 00:03:25.509 and taste. 00:03:25.509 --> 00:03:27.273 Indeed, bugs can be delicious. 00:03:27.273 --> 00:03:29.300 Mealworms taste like roasted nuts. 00:03:29.300 --> 00:03:31.219 Locusts are similar to shrimp. 00:03:31.219 --> 00:03:32.853 Crickets, some people say, 00:03:32.853 --> 00:03:34.888 have an aroma of popcorn. 00:03:34.888 --> 00:03:36.489 Farming insects for food 00:03:36.489 --> 00:03:38.611 also has less environmental impact 00:03:38.611 --> 00:03:40.389 than livestock farms do 00:03:40.389 --> 00:03:43.385 because insects emit far less greenhouse gas 00:03:43.385 --> 00:03:46.312 and use up less space, water, and food. 00:03:46.312 --> 00:03:48.535 Socioeconomically, bug production 00:03:48.535 --> 00:03:50.665 could uplift people in developing countries 00:03:50.665 --> 00:03:53.123 since insect farms can be small scale, 00:03:53.123 --> 00:03:54.205 highly productive, 00:03:54.205 --> 00:03:57.073 and yet relatively inexpensive to keep. 00:03:57.073 --> 00:03:58.473 Insects can also be turned 00:03:58.473 --> 00:04:00.553 into more sustainable food for livestock 00:04:00.553 --> 00:04:02.759 and can be reared on organic waste, 00:04:02.759 --> 00:04:04.132 like vegetable peelings, 00:04:04.132 --> 00:04:07.022 that might otherwise just end up rotting in landfills. 00:04:07.022 --> 00:04:08.664 Feeling hungry yet? 00:04:08.664 --> 00:04:10.777 Faced with a plate of fried crickets, 00:04:10.777 --> 00:04:12.801 most people today would still recoil, 00:04:12.801 --> 00:04:14.914 imagining all those legs and feelers 00:04:14.914 --> 00:04:16.799 getting stuck between their teeth. 00:04:16.799 --> 00:04:18.052 But think of a lobster. 00:04:18.052 --> 00:04:20.223 It's pretty much just a giant insect 00:04:20.223 --> 00:04:22.407 with legs and feelers galore 00:04:22.407 --> 00:04:23.436 that was once regarded 00:04:23.436 --> 00:04:25.611 as an inferior, repulsive food. 00:04:25.611 --> 00:04:27.620 Now, lobster is a delicacy. 00:04:27.620 --> 00:04:30.416 Can the same paradigm shift happen for bugs? 00:04:30.416 --> 00:04:31.655 So, give it a try! 00:04:31.655 --> 00:04:33.043 Pop that insect into your mouth, 00:04:33.043 --> 00:04:35.087 and savor the crunch.