|
Crows caw, whereas ____ are larger and make croaking sounds.
|
caribou
|
|
White mulberry leaves are a favorite food for ____.
|
krill
|
|
Most common ____ breed on or near Iceland.
|
locusts
|
|
Arctic ____ have the longest migration journeys.
|
puffins
|
|
Mammoths, elephants, and ____ have large teeth called tusks.
|
ravens
|
|
Cicadas are true bugs, whereas ____ are grasshoppers.
|
silkworms
|
|
Blue whales eat small shrimp-like creatures called ____.
|
terns
|
|
Lichen is a major food source for ____.
|
walruses
|
