|
Fireflies are really flying ____ that flash light to attract mates.
|
beetles
|
|
Penguins, emus, rheas, kiwis, and ____ are flightless birds.
|
flamingos
|
|
Crows caw, whereas ____ are larger and make croaking sounds.
|
locusts
|
|
Born gray, ____ become pink after eating lots of shrimp.
|
orcas
|
|
Cicadas are true bugs, whereas ____ are grasshoppers.
|
ostriches
|
|
Killer whales, also called ____, are black with white undersides.
|
ravens
|
|
Tree ____ are slow-moving mammals of tropical rainforests.
|
silkworms
|
|
White mulberry leaves are a favorite food for ____.
|
sloths
|
