Some fascinating footage (thanks, Karl) that shows Orca adapting their hunting habits--including dealing with great white sharks. I find this amazing--much like the stories of bears in Yellowstone Park--in pointing out how far adaptive intelligence can be pushed. This hunting behaviour doesn't even need higher cognitive function. Oh, and three cheers for NatGeo, eh?
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I am totally in awe of orcas. Talk about evolving to meet the ocean conditions -- these are supremely capable success stories. Go, orcas, go!
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