Despite the fact that it may sound like a horror movie, two-headed sharks are a reality and they are even spreading across the world. After one specimen was discovered this October, more appeared after it, causing worldwide panic. Media reports show that these two-headed sharks are found in different parts of the world.
The first specimen was found last month and the BBC mentioned that researchers saw this shark while it was still an embryo in its egg. In the past, there have been sharks that made an offspring which had 2 heads, but this embryo caused a lot of panic around the world. People at first believed that it was all a joke. Specialists mentioned that it is indeed a real and apparantly common phenomenon.
National Geographic wrote an article about this mentioning that there are more two-headed sharks out there and that the embryo was not fake. According to other media reports, there have been lots of cases involving these two-headed embryos but they did not appear in the media.
These sharks can’t live a long life because they can’t develop normally. At least this is what the researchers are saying. They mentioned that it is hard for these animals to grow to a normal size because they have two heads instead of one. This is why the only specimens seen by specialists are infants or embryos, the sharks dying before having a chance to reach maturity.
These fish have a genetic abnormality that doesn’t allow them to grow and causes them to live a very short life as infants. After a few weeks, they die. This can be a relief for many people. The problem is that if this happens more often than it does now, there might be even more cases of animals with abnormalities.
The species that is more likely to give birth to these two-headed sharks is the blue shark because they can have more than 50 babies at once. This is one of the factors that can cause abnormalities to other species. Some researchers mentioned that this factor combined with over-fishing can create a lot of problems for these animals.
Despite the fact that these animals will never grow to a normal size, people have been going crazy on social media posting a lot of photos and theories. They even believe that the number of deaths caused by sharks can double.
Image source: Wikipedia