It would seem that Dracula’s relatives from Brazil have ditched their regular bird blood-based meal, and have decided to prey on human beings instead. A team of researchers from Brazil has found traces of human DND in bat excrements. The researchers believe that the bats’ behavioral changes were triggered by human interference.
A team of researchers from the Zoology Department of the Federal University of Pernambuco has discovered minute traces of human DNA in the excrements of bats belonging to the Dyphilla ecaudata genus.
The bats in question live in a remote cave located in the Catimbau National Park, one of Brazil’s largest natural reservations. According to the specialists, the National Park has at least 2,000 caves, each of them being inhabited by vampire bats.
Enrico Bernard, the leader of the project, said that he and his team had studied a colony of vampire bats located in a cave for the past three years. Throughout of the study, the team has discovered that the local inhabitants destroyed that bats’ ecosystem.
However, as Bernard explained, the area was turned into a National Park in 2002, in hopes of preserving the local wildlife. Although much of the people inhabiting the area were moved to another location, some residents refused to move. Bernard said that the people inhabiting the national park are living in makeshift houses, with little to no protection against the weather or the local wildlife.
The team believes that due to human interference, the bats’ natural environment was damaged, resulting in the bats having to search for alternative sources of nourishments. Normally, the vampire bats from the Catimbau National Park of Brazil would feed off the blood of birds of other small animals.
But these vampire bats have refined their palate, and are now on the prowl for human blood. Bernard explained that vampire bats feed off the fat in the blood and that an adult bat consumes approximately one tablespoon of blood per day.
While bird blood can meet the vampire bat’s daily fat requirement, human blood has a high content of protein and thicker, and, thus, a meal with a higher nutritional value. Bernard assured the park’s residents that they should remain calm, as the bats don’t pose a threat for now.
However, the scientist declared that if the bats decide to ditch their bird blood diet completely and seek only human blood, they might become a threat, as bats are known to carry rabies.
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