Orcas son captadas por primera vez aniquilando tiburones.
Por primera vez se logró captar en video a una manada de orcas cazando y aniquilando a grandes tiburones blancos.
Científicos han publicado nuevos hallazgos que confirman que las orcas cazan a los grandes tiburones blancos. Esto después de que orcas fueran captadas en video aniquilando a uno de los depredadores marinos más grandes del mundo.
Con imágenes captadas por drones y helicopteros, como parte de un estudio, se logra ver a una manada de orcas persiguiendo tiburones. Esta persecución de una hora fue frente a Mossel Bay, una ciudad portuaria en la provincia sureña de Western Cape en Sudáfrica.
«Este comportamiento nunca antes se había visto en detalle, y ciertamente nunca desde el aire», dijo la autora principal del estudio, Alison Towner.
Un clip muestra a cinco orcas persiguiendo y aniquilando a un gran tiburón blanco y los científicos creen que a tres más los mutilaron hasta caer.
«Las orcas son animales muy inteligentes y sociales. Sus métodos de caza en grupo las convierten en depredadores increíblemente efectivos», dijo Simon Elwen, coautor del estudio.
Se sabe que las orcas, el principal depredador del océano, se alimentan de otras especies de tiburones. Sin embargo, había muy poca evidencia de ataques a los tiburones blancos.
El estudio no abordó las razones detrás del comportamiento.
Se sabía que una de las ballenas captadas había atacado antes a tiburones blancos, pero las otras cuatro no.
Los autores dijeron que esto sugería que la práctica se estaba extendiendo, ya que estudios anteriores establecieron que las orcas pueden aprender unos de otros.
Los tiburones desaparecieron del área después del ataque, y solo se vio un gran tiburón blanco en los siguientes 45 días, según el artículo que se publicó en la revista científica Ecology.
Los autores dijeron que esto confirmó que los tiburones están huyendo y podría tener implicaciones más amplias.
«Observamos por primera vez que tiburones moteados y tiburones blancos huían a la presencia de orcas en False Bay en 2015 y 2017. Los tiburones finalmente abandonaron antiguos hábitats clave, lo que ha tenido efectos colaterales significativos tanto para el ecosistema y el turismo relacionado con los tiburones», dijo la Dra. Alison Kock, experta en tiburones.
Las imágenes se filmaron en mayo y uno de los videos se emitió por primera vez en junio.
Con información de CBS News.
Somos Extremo Mundial.
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