The food chain really is sun -> algae -> krill (and sometimes small fish) -> humpback whale
> Bursting from their enormous lungs at over 300mph (483km/h), a humpback whale's blow can rise up to 7m (23ft) into the air.
Pick a lane BBC.
But this is great news. Also the fact that whales "transport huge amounts of nutrients across the globe" (linking to [1]) is fascinating. The role of whales in sucking up critters in one place and pooping them out elsewhere being a fundamental dynamic that drives global ocean ecosystems... just chefs kiss
[1] https://www.nature.com/research-intelligence/nri-topic-summa...)
Said from a proudly metric country, New Zealand, where everyone knows their weight in kilograms and height in feet and inches.
But whales routinely dive deep, and their tail fin is _horizontal_ and it creates powerful updrafts.
Another organism that affects mixing is apparently jellyfish.