Animals

Whales are amazing, and stories like this are really heartbreaking.

The hunters themselves realised the whales’ efforts to escape. They saw that the animals appeared to communicate the threat within their attacked groups. Abandoning their usual defensive formations, the whales swam upwind to escape the hunters’ ships, themselves wind-powered. ‘This was cultural evolution, much too fast for genetic evolution,’ says Whitehead.

https://www.theguardian.com/environment/2021/mar/17/sperm-whales-in-19th-century-shared-ship-attack-information

I don't see any need to call it 'cultural evolution', though--it was obviously whales telling each other what to do once they'd worked it out, no need for 'evolution'.

The usual apologies to @BareNecessities for posting a sad story, but I'm extremely interested in stories of animal intelligence.