Researchers have been studying the mysterious sixgill sharks in the coastal waters of British Columbia, Canada for quite some time. They can't figure out why a shark who normally lives thousands of feet deep comes up to diving depths for a few months of the year. We know that they aren't breeding or feeding, so what are they doing?
I recently heard the best theory going - It's their yearly decompression phase.
I recently heard the best theory going - It's their yearly decompression phase.