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Killer whales, also called ____, are black with white undersides.
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beetles
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Blue whales eat small shrimp-like creatures called ____.
|
krill
|
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Aphids (tiny plant-eating pests) are a favorite food for ____.
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ladybugs
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Penguins, emus, rheas, kiwis, and ____ are flightless birds.
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orcas
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Arctic ____ have the longest migration journeys.
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ostriches
|
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Most common ____ breed on or near Iceland.
|
puffins
|
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Fireflies are really flying ____ that flash light to attract mates.
|
ravens
|
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Crows caw, whereas ____ are larger and make croaking sounds.
|
terns
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