Found this data trove today.

Recommend to check one dataset, and it's associated paper. Maybe post anything interesting that you find.

Not recommended to go full rabbit-hole and read a days worth of papers. (or go for it)

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From a paper in the Science section,

Monitoring of Humpback Whales in the Pender Bay, Kimberley, 2009 to 2012

"it was observed that the number of whale sightings decreased around midday as well as a shift in the whales’ behaviours from more visible displays like blowing to less visible activities such as surface travelling."