Over 20 years ago, a global project called the Census of Marine Life observed a number of marine species migrating long distances across Oceans. It was new data that technology allowed us to see through satellite tags, a new tool at the time. 

Satellite tags have advanced in technology over the past 20 years and that has allowed scientists to understand a little bit more about how marine species move through the Oceans. New research has revealed that marine species such as sharks, tuna, marine mammals, penguins, and sea turtles swim in circles inside and outside of feeding areas. The research has led scientists to hypothesize that the animals may be searching for navigation information from geomagnetic fields.  

More research is needed to understand the micromovements of marine species.

Link to Article: https://www.vice.com/en/article/qjpy9m/all-kinds-of-marine-animals-are-mysteriously-circling-in-bizarre-discovery

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