Every 8 Years, Swarms of Millipedes Stop Trains in Japan. Scientists Finally Know Why (Science Alert)
Science headlines like this might freak you out a bit but thankfully, scientists have found an answer to major questions they had. The story goes that every eight years during the fall, a massive amount of millipedes swarm train-lines in the mountains of Japan. Scientists just did not know why this happened. Yet after spending 50 years researching the odd issue, we now have an answer to the question.
They found that these specific millipedes live on a rare eight-year lifecycle. Meaning all of the millipedes that come to these train tracks are different. It’s almost like they are taking a religious pilgrimage to where their parents met. Before this, cicadas were the only known periodical animals with this type of lifespan. The team wrote in their groundbreaking paper that the millipede needs seven years from egg to adult, with one more year for maturation. They tested the egg to adult theory in two different locations known for millipedes. Both coming back with exact matches.