Top 10 animales extintos

Top 10 animales extintos

animales extintos

1 – Baiji

Este es uno de los animales extintos m谩s recientemente en 2008. El caso del baiji o delf铆n chino de r铆o es el mejor ejemplo de como una reacci贸n tard铆a no es suficiente. La sobrepesca y la construcci贸n de represas diezmaron la poblaci贸n de este tipo de delf铆n, caracterizado por su alargado morro, hasta que en 1979 el Gobierno chino lo declaro en peligro de extinci贸n. En 1983 se ilegaliz贸 su caza y la especie fue disminuyendo paulatinamente hasta que en 2007聽se encontraron s贸lo 23 ejemplares. En 2008 se declar贸 oficialmente su extinci贸n.

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2 – Sapo dorado

Extinto en 1989. Aunque los investigadores no han tirado la toalla con esta especie de anfibio, lo cierto es que se declar贸 extinto hace ya casi tres d茅cadas. El calentamiento global es el responsable de su desaparici贸n, al haber alterado las condiciones de su h谩bitat hasta un punto de no retorno. Diferentes expediciones desde entonces -1994, 2004 y la 煤ltima en 2013- han tratado de encontrar聽alg煤n ejemplar en Costa Rica, pero todas han sido infructuosas.

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3 – Bucardo

Extinto en 2000. Una de las clases de cabra aut贸ctona de Espa帽a desapareci贸 a finales del pasado siglo. Originaria de la zona pirenaica y extendida por Euskadi, Navarra, Huesca, Lleida y Girona, el bucardo era un emblema de la monta帽a en el norte de la Pen铆nsula Ib茅rica. La caza es el motivo de su desaparici贸n, ya que su聽cornamenta era un objeto muy demandado. En 1900 ya se hab铆a extinguido en el Pirineo franc茅s, y para entonces ya s贸lo 50 individuos poblaban la monta帽a en la parte espa帽ola. La 煤ltima hembra muri贸 en el a帽o 2000.

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4 – El dodo

M谩s conocido por聽Alicia en el Pa铆s de las Maravillas聽que por los libros de ciencia es uno de los animales extintos mas antiguos en la historia, el dodo podr铆a haber llegado muy lejos, por vivir en聽un h谩bitat sin ning煤n tipo de depredador. Sin embargo, despu茅s de que los humanos llegaran a la聽Isla de Mauricio, en la que viv铆a, arrasaron con 茅l, llev谩ndolo irremediablemente hacia la extinci贸n a finales del sigloXVII.

5 3

5 – Foca monje del Caribe

Extinta en 1952. De las tres especies de focas monje que el hombre lleg贸 a conocer, ya s贸lo quedan dos: la del Mediterr谩neo y la de Haw谩i. La del Caribe desapareci贸 a mediados del pasado siglo. Su h谩bitat se extend铆a desde Florida hasta el norte de Sudam茅rica, y el primer registr贸 sobre su avistamiento fue escrito por Crist贸bal Col贸n en su segundo viaje (1494). La foca monje fue exterminada por su grasa, su piel y como alimento. Adem谩s, err贸neamente se crey贸 que supon铆an聽una gran amenaza para los bancos de pescado聽y se organiz贸 una campa帽a oficiosa para acabar con ella.

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6 – La cebra de las llanuras, o Quagga

El 煤ltimo ejemplar salvaje de estos animales extintos, t铆pico de聽Sud谩frica, muri贸 a manos de los cazadores聽en 1.870, mientras que el 煤ltimo en cautiverio falleci贸聽en 1.883. Por eso, un siglo despu茅s,聽en 1.987, se inaugur贸 el聽Proyecto Quagga,聽que pretende devolver a la vida a este peculiar animal.

7 3

7 – El tigre de Tasmania

El聽tigre de Tasmania聽fue un curioso聽marsupial聽caracter铆stico que vivi贸 en algunas zonas de聽Australia y Nueva Guinea聽hasta su extinci贸n, que tuvo lugar en los聽a帽os 60. Sin embargo, se cree que parte de su ADN ha llegado hasta nuestros d铆as entre el genoma del聽demonio de Tasmania, por lo que no es una especie totalmente perdida.

8 3

8 – El alca gigante

Un curioso ejemplo es el del聽alca gigante, ya que su extinci贸n tuvo lugar con motivo de una serie de聽cambios clim谩ticos de la Edad de hielo聽que llevaron hasta su territorio a los聽osos polares; que, junto a la caza humana, terminaron por hacerles sucumbir. Por eso, como tambi茅n es en parte por nuestra culpa, el nombre de este ping眉ino es de los m谩s sonados entre los candidatos a ser recuperados a trav茅s de聽ingenier铆a gen茅tica.

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9 – Tigre de Bali

Extinto en 1937. Esta especie de felino era originaria de la isla de Bali. Contaba con un territorio muy acotado para sobrevivir que se vio amenazado con la expansi贸n humana. El miedo, la caza y la destrucci贸n de su peque帽o h谩bitat provocaron su desaparici贸n a finales de los a帽os 30. El tigre de Java y el tigre del mar Caspio son las otras dos聽subespecies que desaparecieron聽en el siglo XX.

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10 – Le贸n del Cabo

Extinto en 1860. Este tipo de le贸n, que viv铆a en Sud谩frica, fue descubierto por los b贸ers 鈥揷olonos holandeses- y se les suele atribuir a ellos la responsabilidad por su desaparici贸n, cuando en realidad los cazadores ingleses fueron quienes diezmaron la poblaci贸n hasta extinguirla, principalmente porque atacaban a su ganado, pero tambi茅n como divertimento. Eran muy similares a los leones que habitan el resto de 脕frica, aunque con聽un tama帽o ligeramente superior聽y una melena m谩s abundante y oscura.

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(Votos: 1 Promedio: 5)

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  52. GO!!!
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