How Krill Built the Biggest Animal Ever

The blue whale didn’t become the biggest animal in Earth’s history by accident. It did it by picking the most overpowered diet in the ocean: krill. Tiny, thumb-sized, absurdly energy-dense krill — packed into swarms so massive they could fill millions of Olympic pools — turned lunge-feeding into a cheat code. One gulp, half a ton straight to the stomach. But the real plot twist? Those krill disappear for half the year, forcing blue whales into a hardcore feast-or-famine lifestyle. So evolution handed them the only upgrade that solves every problem at once: get massive, store fat, and keep moving. No legends, no tall tales — just brutal biology and the world’s biggest animal grinding its way to greatness.
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https://www.youtube.com/watch?v=K2cq9GMElvI