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Per sanguis, mutat omnia quae tangit
   Através do sangue, ele mudará tudo o que tocar.
De todas as histórias de vampiros, a mais famosa deve ser a lenda do Conde Drácula, um romance escrito
em 1897 pelo autor irlandês Bram Stoker. Em 1992 a história foi adaptada para o cinema e desde então
diversos livros e filmes tem retomada a base principal da lenda dos vampiros. Nessas lendas os vampiros
são seres imortais que se alimentam de sangue.
A associação dos morcegos com essa lenda deve-se a 3 espécies de morcegos, sendo uma delas mais
estudada e bem conhecida: Morcego-Vampiro.
Desmodus rotundus




Essa espécie costuma habitar cavernas muito úmidas, e é das poucas espécies de morcego capaz de
caminhar no solo, apoiados em seus dedos. Ao contrário do que as pessoas pensam os morcegos
vampiros não chupam, e sim lambem o sangue que sai da mordida desferida por eles. Sua saliva
contém uma substância anticoagulante que está sendo pesquisada para uso em doenças circulatórias.
Existem três teorias principais para explicar o surgimento do hábito hematófago em
morcegos. A primeira sugere que um ancestral frugívoro de incisivos fortes e pontiagudos
seria capaz de arrancar pequenos pedaços de pele de eventuais presas. Outra teoria cria a
hipótese de que o ancestral desses morcegos deveria estar habituado a se alimentar de
carrapatos parasitas de grandes mamíferos e que aos poucos esses morcegos passaram se
alimentar diretamente do sangue desses animais. A terceira teoria remete a um ancestral que
se alimentaria de larvas de insetos presentes em feridas de grandes animais. No entanto o
debate entre pesquisadores é caloroso e até hoje nenhum das teorias ganhou força ou
seguidores o suficiente para ser mais aceita que outra.

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Morcego

  • 1. Per sanguis, mutat omnia quae tangit Através do sangue, ele mudará tudo o que tocar.
  • 2. De todas as histórias de vampiros, a mais famosa deve ser a lenda do Conde Drácula, um romance escrito em 1897 pelo autor irlandês Bram Stoker. Em 1992 a história foi adaptada para o cinema e desde então diversos livros e filmes tem retomada a base principal da lenda dos vampiros. Nessas lendas os vampiros são seres imortais que se alimentam de sangue. A associação dos morcegos com essa lenda deve-se a 3 espécies de morcegos, sendo uma delas mais estudada e bem conhecida: Morcego-Vampiro.
  • 3. Desmodus rotundus Essa espécie costuma habitar cavernas muito úmidas, e é das poucas espécies de morcego capaz de caminhar no solo, apoiados em seus dedos. Ao contrário do que as pessoas pensam os morcegos vampiros não chupam, e sim lambem o sangue que sai da mordida desferida por eles. Sua saliva contém uma substância anticoagulante que está sendo pesquisada para uso em doenças circulatórias.
  • 4. Existem três teorias principais para explicar o surgimento do hábito hematófago em morcegos. A primeira sugere que um ancestral frugívoro de incisivos fortes e pontiagudos seria capaz de arrancar pequenos pedaços de pele de eventuais presas. Outra teoria cria a hipótese de que o ancestral desses morcegos deveria estar habituado a se alimentar de carrapatos parasitas de grandes mamíferos e que aos poucos esses morcegos passaram se alimentar diretamente do sangue desses animais. A terceira teoria remete a um ancestral que se alimentaria de larvas de insetos presentes em feridas de grandes animais. No entanto o debate entre pesquisadores é caloroso e até hoje nenhum das teorias ganhou força ou seguidores o suficiente para ser mais aceita que outra.