Two-headed sharks are mysteriously appearing in our oceans. Beware, close the beaches and call the coast guard because scientists warn that these sharks are becoming more and more common.
Two-headed shark fetuses have been found in Florida, Mexico and in the Indian Ocean. Despite a growing number of sightings worldwide, two-headed sharks are still rare, at least for now. Most don’t survive birth, making it difficult to study the cause of these anomalies. So, what’s causing these freak mutations?
Two-headed blue sharks are more common because the females have a lot of eggs—and thus more opportunity for abnormalities.
Overfishing has caused a devastating 90% decline in global shark populations. Causing sharks to inbreed, which limits the gene pool and causes birth defects. Other scientists say that two-headed shark populations aren’t getting larger. They simply believe that there are more scientific journals to report on them. Time will ultimately prove that whether this issue becomes widespread. Maybe we should put our heads together and act now before it is too late.
“Two heads are better than one” is a great concept when it comes to figuring out a specific problem, but not so much when it’s literally referring to a dangerous animal suffering from polycephaly.
Oceans cover 71% of the Earth’s surface which is a lot of deep-water territory to keep an eye on. As the human population continues to grow the odds of finding such creatures increases. Combine that with factors like overfishing causing decreased shark populations and the resulting inbreeding is two-headedness as an unfortunate genetic defect that can happen.
Don’t worry about coming across a two-headed finned monstrosity in the wild, since one major factor working against these sharks is the bitter irony of an animal born in the ocean that can’t swim. Yes, two heads fighting over which direction to go makes for an easy target for predators!