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| Biologia-Vida | Photo: David Midgley Resposta/Answer |
Incrível camuflagem de um Bicho-Folha (Tropidoderus childrenii), encontrado na Austrália, que vivem em eucaliptos e se alimentam das folhas dessa árvore.
Amazing camouflage of a Children's stick insect (Tropidoderus childrenii), found in Australia, that live on Eucalyptus trees and eat its leaves.
Amazing camouflage of a Children's stick insect (Tropidoderus childrenii), found in Australia, that live on Eucalyptus trees and eat its leaves.
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As formas de se defender na vida selvagem são muitas, desde agressividade até venenos mortais. Alguns animais, porém, conseguem se proteger ficando completamente parados e se camuflando entre o meio onde vivem. Seguem aqui alguns exemplos dessa característica e alguns desafios: você consegue encontrar todos os animais aqui? (Como sou muito boazinha, coloquei abaixo de cada foto uma resposta com o animal circulado, para ninguém passar nervoso se não encontrar hehehe).
Vale lembrar que ser parecido com uma folha ou pedra não foi algo que o bicho escolheu, ele não se camuflou porque resolveu que seria uma boa ideia. Essas espécies foram sofrendo mutações ao decorrer de muitos anos, e os indivíduos cuja mutação resultou em um corpo mais parecido com uma folha sobreviveram com mais facilidade e os que não possuíam essa mutação eram comidos e não tinham oportunidade de se reproduzir. Com o passar dos anos apenas os animais que sobreviviam, os camuflados, conseguiam ter filhotes e passar para frente seus genes e assim a seleção natural manteve apenas os animais da espécie que eram camuflados, sendo da forma que observamos hoje.
E, claro, a seleção vai continuar atuando enquanto eles se reproduzem e morrem, portanto conforme o ambiente em volta deles muda as características "vencedoras" mudam também. Ou seja, toda espécie está em constante mudança e subjetiva à seleção natural conforme a população aumenta (ou diminui).
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| Photo: Wildmadagascar.org Resposta/answer |
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| Biologia-Vida | Photo: Thomas Marent Resposta/Answer |
You can spot the master of camouflage on these photos? Mossy Leaf-tailed Gecko (Uroplatus sikorae) are only found in Madagascar and can change their skin color to match the environment around him, and have dermal flaps around the body which break up its outline when at rest at trees.
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There are many ways that animals defend themselves in the wild, from aggression to deadly poisons. Some
animals, however, can protect themselves sitting completely still and
camouflaging themselves on the environment where they live. Here are some examples of this feature and some challenges: can you
find all the animals here? (since I'm a loving person, I put a link
with the answer of each photo each the animal circulated so nobody would
get nervous if you can't find it).
Remember that looking like a leaf or stone was not something that the animal chosen, he did not camouflaged because he decided it would be a good idea. These species suffered mutations on the course of many years, and individuals whose mutation resulted in a body more like a leaf survived more easily and those who did not have this mutation were eaten and had no chance to reproduce. Over the years only animals that survived, the camouflaged ones, could have babies and passed on their genes and so natural selection kept only animals of the species that were camouflaged, and those are the ones we see today.
And of course, the selection will continue acting as they reproduce and die, so as the environment around them changes the "winning" characteristics change too. That is, all species are constantly changing and subjective to natural selection as the population increases (or decreases).
Remember that looking like a leaf or stone was not something that the animal chosen, he did not camouflaged because he decided it would be a good idea. These species suffered mutations on the course of many years, and individuals whose mutation resulted in a body more like a leaf survived more easily and those who did not have this mutation were eaten and had no chance to reproduce. Over the years only animals that survived, the camouflaged ones, could have babies and passed on their genes and so natural selection kept only animals of the species that were camouflaged, and those are the ones we see today.
And of course, the selection will continue acting as they reproduce and die, so as the environment around them changes the "winning" characteristics change too. That is, all species are constantly changing and subjective to natural selection as the population increases (or decreases).
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| Biologia-Vida | Photo:
Lior Golgher Resposta/answer |
Acredite ou não, tem um sapo folha (Proceratophrys boiei) em cada uma dessas fotos! A camuflagem dele é perfeita, exatamente igual uma folha seca; ele é encontrado aqui no Brasil, associado à Mata Atlântica e áreas de transição com cerrado, desde o Espírito Santo até o sul de Santa Catarina.
Believe it or not, there is one leaf frog (Proceratophrys boiei) on each of these two photos! It's camouflage is perfect, just like a dry leaf; it is found in Brazil, associated with the Atlantic Rainforest and transition areas with Cerrado, from thestate Espírito Santo to the south of Santa Catarina.
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| Biologia-Vida | Photo: Christian Ziegler Resposta/Answer |
Com uma camuflagem quase perfeita, essa esperança-folha (família
Tettigoniidae) pode acabar passando despercebida por outros insetos, que
só perceberão sua presença quando virarem refeição.
With an almost perfect camouflage, this leaf katydid (family
Tettigoniidae) may end up passing unnoticed by other insects, which will
only realize their presence once they already became a meal.
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| Biologia-vida | Photo: Arthur Anker Resposta/Answer |
Mariposa folha seca (Oxytenis modestia) encontrada desde a Guatemala até América do Sul. A lagarta dessa espécie também é fantástica, com um desenho no corpo que parecem olhos enormes a fazendo parecer um animal maior e assustando predadores. Já a mariposa (fase adulta) como podemos ver, se defende camuflando e enganando predadores.
Dead leaf moth (Oxytenis modesty) found from Guatemala to South America. The caterpillar of this species is also fantastic, with a design in the body that seems like two huge eyes making it look like a larger animal and scaring predators. Now the moth (adulthood) as we can see camouflage itself and deceives predators.
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| Photo: Eerika Schulz Resposta/Answer |
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| Biologia-Vida | Photo: Geiser Trivelato Resposta/Answer |
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| Photo: Morten Ross Resposta/Answer |
Common Potoo (Nyctibius sp.) it has one of the most beautiful and sad singing of the world. Found in South America and widely distributed throughout Brazil, both adult and puppy can stay a long time standing in branches, perfectly camouflaging themselves.
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| Photo: Unknown photographer. If you know, please tell us Resposta/Answer |
Nessa ultima foto tem um sapo bem pequeno, a foto que foi mais difícil para mim encontrar! Boa sorte! / On this last photo, there is a very small frog that was the hardest one for me to find! Good luck!
Postado por Thalita Morais
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