[NEW] 10 Fascinating Facts About Grasshoppers | grasshopper – Pickpeup

grasshopper: คุณกำลังดูกระทู้

Famed fable writer Aesop portrayed the grasshopper as a ne’er do well who fiddled away his summer days without a thought to the future but in the real world, the destruction wreaked by grasshoppers on farming and ranching is far from a harmless parable. Although grasshoppers are extremely common, there’s more to these summertime critters than meets the eye. Here’s a list of 10 fascinating grasshopper-related facts.

1. Grasshoppers and Locusts Are One and the Same

When we think of grasshoppers, most people recall pleasant childhood memories of trying to catch the jumping insects in meadows or backyards. Say the word locusts, however, and it brings to mind images of historic plagues raining down destruction on crops and devouring every plant in sight.

Truth be told, grasshoppers and locusts are members of the same insect order. While certain species are commonly referred to grasshoppers and others as locusts, both creatures are short-horned members of the order Orthoptera. Jumping herbivores with shorter antennae are grouped into the suborder Caelifera, while their longer-horned brethren (crickets and katydids) belong to the suborder Ensifera.

2. Grasshoppers Have Ears on Their Bellies

The grasshopper’s auditory organs are found not on the head, but rather, on the abdomen. A pair of membranes that vibrate in response to sound waves are located one on either side of the first abdominal segment, tucked under the wings. This simple eardrum, called a tympanal organ, allows the grasshopper to hear the songs of its fellow grasshoppers.

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3. Although Grasshoppers Can Hear, They Can’t Distinguish Pitch Very Well

As with most insects, the grasshopper’s auditory organs are simple structures. They can detect differences in intensity and rhythm, but not pitch. The male grasshopper’s song isn’t particularly melodic which is a good thing since females don’t care whether or not a fellow can carry a tune. Each species of grasshopper produces a characteristic rhythm that distinguishes its song from others and enables courting males and females of a given species to find one another.

4. Grasshoppers Make Music by Stridulating or Crepitating

If you’re not familiar with those terms, don’t worry. It’s not all that complicated. Most grasshoppers stridulate, which simply means that they rub their hind legs against their forewings to produce their trademark tunes. Special pegs on the inside of the hind leg act like a percussion instrument of sorts when they come in contact with the thickened edge of the wing. The band-winged grasshoppers crepitate or loudly snap their wings as they fly.

5. Grasshoppers Catapult Themselves Into the Air

If you’ve ever tried to catch a grasshopper, you know how far they can jump to flee danger. If humans could jump the way grasshoppers do, we would be able to easily leap the length of a football field. How do these insects jump so far? It’s all in those big, back legs. A grasshopper’s hind legs function like miniature catapults. In preparation for a jump, the grasshopper contracts its large flexor muscles slowly, bending its hind legs at the knee joint. A special piece of cuticle within the knee acts as a spring, storing up all the potential energy. The grasshopper then relaxes its leg muscles, allowing the spring to release its energy and fling the insect into the air.

6. Grasshoppers Can Fly

Because grasshoppers have such powerful jumping legs, people sometimes don’t realize that they also have wings. Grasshoppers use their jumping ability to give them a boost into the air but most are pretty strong fliers and make good use of their wings to escape predators.

7. Grasshoppers Can Devastate Food Crops

One lone grasshopper can’t do too much harm, although it eats about half its body weight in plants each day—but when locusts swarm, their combined feeding habits can completely defoliate a landscape, leaving farmers without crops and people without food. In 2006, researchers reported an earlier study estimating that damage to forage crops amounting to $1.5 billion was caused annually by grasshoppers. In 1954, a swarm of Desert locusts (Schistocerca gregaria) consumed over 75 square miles of wild and cultivated plants in Kenya.

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8. Grasshoppers Are an Important Source of Protein

People have been consuming locusts and grasshoppers for centuries. According to the Bible, John the Baptist ate locusts and honey in the wilderness. Locusts and grasshoppers are a regular dietary component in local diets in many areas of Africa, Asia, and the Americas—and since they’re packed with protein, they’re an important nutritional staple as well.

9. Grasshoppers Existed Long Before Dinosaurs

Modern-day grasshoppers descend from ancient ancestors that lived long before dinosaurs roamed the Earth. The fossil record shows that primitive grasshoppers first appeared during the Carboniferous period, more than 300 million years ago. Most ancient grasshoppers are preserved as fossils, although grasshopper nymphs (the second stage in the grasshopper lifestyle after the initial egg phase) are occasionally found in amber.

10. Grasshoppers May “Spit” Liquid to Defend Themselves

If you’ve ever handled grasshoppers, you’ve probably had a few of them spit brown liquid on you in protest. Scientists believe this behavior is a means of self-defense, and the liquid helps the insects repel predators. Some people say grasshoppers spit “tobacco juice,” probably because historically, grasshoppers have been associated with tobacco crops. Rest assured, however, the grasshoppers aren’t using you as a spittoon.

Additional References

  • Locusts.” Science Direct Earth and Planetary Sciences. Elsevier.
  • Zhang, Long, et al. “Locust and Grasshopper Management.” Annual Review of Entomology 64.1 (2019): 15–34. doi:10.1146/annurev-ento-011118-112500


Learn Grasshopper Types in English! Types of Grasshoppers! English Names of Grasshopper Species🦗🦗🦗🦗🦗


Hi,
We are going to learn 15 different types of grasshoppers. Did you know that grasshoppers don’t usually bite people? But some types that gather in large swarms may bite when swarming. Other types of grasshoppers may bite people if they feel threatened. Grasshoppers aren’t poisonous, and their bites aren’t dangerous to people!
But we as a Balyanak TV channel still not sure about to become a fan of grasshoppers! Thank you for watching!
00:00 Introduction
00:07 Lesser Marsh Grasshopper
00:15 Common Field Grasshopper
00:22 Meadow Grasshopper
00:31 Egyptian Locust
00:37 Mottled Grasshopper
00:45 Common Green Grasshopper
00:52 Desert Locust
01:01 Eastern Lubber
01:07 Western Horse Lubber
01:15 Obscure Bird Grasshopper
01:22 Whitelined Bird Grasshopper
01:30 Bladder Grasshopper
01:37 Stick Grasshopper
01:45 Matchstick Grasshopper
01:52 Slender Groundhopper
TypesOfGrasshoppers Grasshoppers Crickects Groundhoppers Locusts GrasshopperSpecies LearnGrasshopperTypes

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Learn Grasshopper Types in English! Types of Grasshoppers! English Names of Grasshopper Species🦗🦗🦗🦗🦗

Grasshopper – 草蜢 -《寶貝, 對不起》MV


Music video by Grasshopper performing Bao Bei , Dui Bu Qi (Music Video). © 2006 Universal Music Ltd.
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Grasshopper - 草蜢 -《寶貝, 對不起》MV

Grasshopper教學000-基本介紹 Introduction


Grasshopper教學: 適合初學入門! 參數化建模是什麼? 其實一點也不難喔! 影片前部分先介紹關於參數化建模的淵源,除了想告訴大家gh真的是個很棒的軟體外,也讓大家了解下參數化建模一路走來的小歷程♥ 後半段是gh的基本操作介面和電池概念,熟悉一下軟體面孔。
後續會陸續上傳影片,喜歡的話請幫我按讚、訂閱或分享♥

grasshopper入門 課程大綱:
01Hello, grasshopper!
https://youtu.be/Itf1i2S1ys
02參數類型介紹
https://youtu.be/4NNXpbr65Bg
03數學運算:變數與常數
https://youtu.be/FL1DsDLu1VY
04關聯式模型
https://youtu.be/zgtg3aRIjEk
05曲線牆
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06網型柱
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07方格與向量
https://youtu.be/zhG25P9Qly4
08簡易吸子
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09異形環
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10曲面變形
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11入門課程結尾
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想繼續學習或了解更多的,歡迎參考grasshopper初級課程♥
連結待補

關於影片作者及軟體
CY,現居淡水,不務正業的建築女子,感嘆人生苦短,想找更多自己喜歡的事情做所以開始拍影片……
軟體版本:Rhino 6 SR17, Grasshopper 1.0.0007

Grasshopper教學000-基本介紹 Introduction

El Chombo – Dame Tu Cosita feat. Cutty Ranks (Official Video) [Ultra Music]


Check out the new \”Dame Tu Cosita\”! https://youtu.be/FMN3AtsXqA0
El Chombo Dame Tu Cosita feat. Cutty Ranks
El Chombo Dame Tu Cosita feat. Cutty Ranks by Ultra Music
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El Chombo - Dame Tu Cosita feat. Cutty Ranks (Official Video) [Ultra Music]

Grasshopper useful components Part 1


Full article on BIM Corner BLOG:
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5 Steps to learn GRASSHOPPER FREE GUID
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0:00 Grasshopper Components
0:53 Right Trigonometry
1:33 Concatenate
2:02 List indices
2:58 Gradient
4:03 Data dam
4:46 LearnGrasshopper.com

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Grasshopper useful components Part 1

นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูวิธีอื่นๆMusic of Turkey

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