Blue Whale
An adult Blue Whale can devour up to 40 million krill specimens per day. If the whale reaches environments where krill is abundant, it can gulp down up to 3600 kg (8000 lb) of krill in a day.
When the Blue Whale feeds, it lunges forward into a dense group of krill and open its mouth to let a huge amount of water in. The whale will then use its tongue and ventral puch to squeeze out the water through the baleen plates. The krill are too big to pass the baleen plates and are forced to stay inside the mouth until they whale swallows them down into its stomach.
