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Polar bears are carnivores that mainly eat ____.
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caribou
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Blue whales eat small shrimp-like creatures called ____.
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flamingos
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Penguins, emus, rheas, kiwis, and ____ are flightless birds.
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krill
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Lichen is a major food source for ____.
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lizards
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Chameleons, geckos, and iguanas are types of ____.
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octopuses
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Born gray, ____ become pink after eating lots of shrimp.
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orcas
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Killer whales, also called ____, are black with white undersides.
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ostriches
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To escape from predators, ____ can release black ink.
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seals
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