<p>A humpback whale turns upside down at Hawaiian Islands Humpback Whale National Marine Sanctuary.
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Photo credit: Ed Lyman/NOAA
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44124469278@N01">National Marine Sanctuaries</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/onms/48771005683/">HIHWNMS upside down humpback whale</a>