Animal Behavior

Any ideas on what is going on here?

Or here?

I suspect we don't know nearly as much about large mammal behavior as we think we know.
First photo:

HUMPBACK WHALE AND DOLPHIN
Kauai, Hawaii, USA
Lori Mazzuca
Kailua Kona, Hawaii, USA

Second photo: Daily Mail: Striking aerial image of an uncommonly large herd moving through Chad toward the Tinga. Posted by: Dennehy    Source