These hungry hunters work in teams in the wild to hunt foods ranging from small fish all the way to blue whales. At SeaWorld, Shamu eats up to 250 lb. (113 kg) of fish each day. That’s like you eating 1,000 quarter-pound hamburgers in one day, which is kind of crazy. Despite their huge appetites and hunting prowess killer whale populations are endangered. Like us, killer whales need clean, safe places to live and play. Shamu needs you to help to protect his species! Your everyday actions count, so conserve water, reduce and reuse goods, and don’t let trash where you splash.