WEBVTT 00:00:06.920 --> 00:00:08.520 [Why don't we eat bugs?] 00:00:09.416 --> 00:00:12.124 For centuries, people have consumed bugs, 00:00:12.148 --> 00:00:13.473 everything from beetles 00:00:13.497 --> 00:00:15.351 to caterpillars, locusts, 00:00:15.375 --> 00:00:18.304 grasshoppers, termites, and dragonflies. 00:00:18.328 --> 00:00:20.449 The practice even has a name: 00:00:20.473 --> 00:00:21.488 entomophagy. 00:00:21.512 --> 00:00:24.257 Early hunter-gatherers probably learned from animals 00:00:24.281 --> 00:00:27.370 that foraged for protein-rich insects and followed suit. 00:00:28.147 --> 00:00:31.507 As we evolved and bugs became part of our dietary tradition, 00:00:31.531 --> 00:00:35.368 they fulfilled the role of both staple food and delicacy. 00:00:35.392 --> 00:00:39.250 In ancient Greece, cicadas were considered luxury snacks. 00:00:39.274 --> 00:00:43.016 And even the Romans found beetle larvae to be scrumptious. 00:00:43.040 --> 00:00:45.125 Why have we lost our taste for bugs? 00:00:45.149 --> 00:00:47.971 The reason for our rejection is historical, 00:00:47.995 --> 00:00:49.541 and the story probably begins 00:00:49.565 --> 00:00:52.773 around 10,000 BC in the Fertile Crescent, 00:00:52.797 --> 00:00:54.248 a place in the Middle East 00:00:54.272 --> 00:00:56.757 that was a major birthplace of agriculture. 00:00:56.781 --> 00:01:01.333 Back then, our once-nomadic ancestors began to settle in the Crescent. 00:01:01.357 --> 00:01:04.646 And as they learned to farm crops and domesticate animals there, 00:01:04.670 --> 00:01:06.084 attitudes changed, 00:01:06.108 --> 00:01:09.530 rippling outwards towards Europe and the rest of the Western world. 00:01:09.554 --> 00:01:10.839 As farming took off, 00:01:10.863 --> 00:01:13.940 people might have spurned bugs as mere pests 00:01:13.964 --> 00:01:15.508 that destroyed their crops. 00:01:15.532 --> 00:01:18.367 Populations grew, and the West became urbanized, 00:01:18.391 --> 00:01:21.168 weakening connections with our foraging past. 00:01:21.192 --> 00:01:23.627 People simply forgot their bug-rich history. 00:01:24.015 --> 00:01:26.663 Today, for people not accustomed to entomophagy, 00:01:26.687 --> 00:01:28.256 bugs are just an irritant. 00:01:28.280 --> 00:01:31.216 They sting and bite and infest our food. 00:01:31.240 --> 00:01:33.692 We feel an "ick factor" associated with them 00:01:33.716 --> 00:01:37.118 and are disgusted by the prospect of cooking insects. 00:01:37.142 --> 00:01:40.441 Almost 2,000 insect species are turned into food, 00:01:40.465 --> 00:01:42.542 forming a big part of everyday diets 00:01:42.566 --> 00:01:45.334 for two billion people around the world. 00:01:45.358 --> 00:01:48.386 Countries in the tropics are the keenest consumers, 00:01:48.410 --> 00:01:50.387 because culturally, it's acceptable. 00:01:50.411 --> 00:01:53.318 Species in those regions are also large, diverse, 00:01:53.342 --> 00:01:55.904 and tend to congregate in groups or swarms 00:01:55.928 --> 00:01:57.870 that make them easy to harvest. 00:01:58.124 --> 00:01:59.855 Take Cambodia in Southeast Asia 00:01:59.879 --> 00:02:02.320 where huge tarantulas are gathered, 00:02:02.344 --> 00:02:04.438 fried, and sold in the marketplace. 00:02:04.462 --> 00:02:05.477 In southern Africa, 00:02:05.501 --> 00:02:08.642 the juicy mopane worm is a dietary staple, 00:02:08.666 --> 00:02:10.056 simmered in a spicy sauce 00:02:10.080 --> 00:02:12.554 or eaten dried and salted. 00:02:12.578 --> 00:02:17.229 And in Mexico, chopped jumiles are toasted with garlic, lemon, and salt. 00:02:17.253 --> 00:02:19.630 Bugs can be eaten whole to make up a meal 00:02:19.654 --> 00:02:23.288 or ground into flour, powder, and paste to add to food. 00:02:23.312 --> 00:02:25.153 But it's not all about taste. 00:02:25.177 --> 00:02:26.419 They're also healthy. 00:02:26.443 --> 00:02:30.657 In fact, scientists say entomophagy could be a cost-effective solution 00:02:30.681 --> 00:02:33.503 for developing countries that are food insecure. 00:02:33.527 --> 00:02:36.466 Insects can contain up to 80% protein, 00:02:36.490 --> 00:02:38.313 the body's vital building blocks, 00:02:38.337 --> 00:02:40.856 and are also high in energy-rich fat, 00:02:40.880 --> 00:02:44.264 fiber, and micronutrients like vitamins and minerals. 00:02:44.288 --> 00:02:47.228 Did you know that most edible insects contain the same amount 00:02:47.252 --> 00:02:50.223 or even more mineral iron than beef, 00:02:50.247 --> 00:02:54.670 making them a huge, untapped resource when you consider that iron deficiency 00:02:54.694 --> 00:02:58.398 is currently the most common nutritional problem in the world? 00:02:58.422 --> 00:03:00.555 The mealworm is another nutritious example. 00:03:01.492 --> 00:03:05.390 The yellow beetle larvae are native to America and easy to farm. 00:03:06.362 --> 00:03:07.983 They have a high vitamin content, 00:03:08.007 --> 00:03:09.246 loads of healthy minerals, 00:03:09.270 --> 00:03:11.977 and can contain up to 50% protein, 00:03:12.001 --> 00:03:15.230 almost as much as in an equivalent amount of beef. 00:03:15.254 --> 00:03:17.822 To cook, simply sauté in butter and salt 00:03:17.846 --> 00:03:21.066 or roast and drizzle with chocolate for a crunchy snack. 00:03:21.090 --> 00:03:23.090 What you have to overcome in "ick factor," 00:03:23.114 --> 00:03:25.485 you gain in nutrition and taste. 00:03:25.509 --> 00:03:27.249 Indeed, bugs can be delicious. 00:03:27.273 --> 00:03:29.276 Mealworms taste like roasted nuts. 00:03:29.300 --> 00:03:31.195 Locusts are similar to shrimp. 00:03:31.219 --> 00:03:34.864 Crickets, some people say, have an aroma of popcorn. 00:03:34.888 --> 00:03:38.587 Farming insects for food also has less environmental impact 00:03:38.611 --> 00:03:40.365 than livestock farms do 00:03:40.389 --> 00:03:43.361 because insects emit far less greenhouse gas 00:03:43.385 --> 00:03:46.288 and use up less space, water, and food. 00:03:46.312 --> 00:03:48.511 Socioeconomically, bug production 00:03:48.535 --> 00:03:50.641 could uplift people in developing countries 00:03:50.665 --> 00:03:53.099 since insect farms can be small scale, 00:03:53.123 --> 00:03:57.049 highly productive, and yet relatively inexpensive to keep. 00:03:57.073 --> 00:04:00.529 Insects can also be turned into more sustainable food for livestock 00:04:00.553 --> 00:04:02.735 and can be reared on organic waste, 00:04:02.759 --> 00:04:04.108 like vegetable peelings, 00:04:04.132 --> 00:04:06.998 that might otherwise just end up rotting in landfills. 00:04:07.022 --> 00:04:08.640 Feeling hungry yet? 00:04:08.664 --> 00:04:12.777 Faced with a plate of fried crickets, most people today would still recoil, 00:04:12.801 --> 00:04:16.774 imagining all those legs and feelers getting stuck between their teeth. 00:04:16.798 --> 00:04:18.028 But think of a lobster. 00:04:18.052 --> 00:04:22.383 It's pretty much just a giant insect with legs and feelers galore 00:04:22.407 --> 00:04:25.587 that was once regarded as an inferior, repulsive food. 00:04:25.611 --> 00:04:27.596 Now, lobster is a delicacy. 00:04:27.620 --> 00:04:30.392 Can the same paradigm shift happen for bugs? 00:04:30.416 --> 00:04:31.631 So, give it a try! 00:04:31.655 --> 00:04:33.526 Pop that insect into your mouth, 00:04:33.550 --> 00:04:35.247 and savor the crunch.