National Geographic Kids USA - June, July 2017

NATIONAL GEOGRAPHIC KIDS (^17)
© FLIP NICKLIN / MINDEN PICTURES (BIG PICTURE); © DOUG PERRINE / SEAPICS.COM (UPPER INSET); SEAPICS (LOWER INSET).
© ANUP SHAH / NPL / MINDEN PICTURES (LION, PAGES 18-19)
Digits
Dolphin
5 to 20:
individual
dolphins in
an average
pod
Over 4:
types of
vocalizations
dolphins use
(These include
squawks, whis-
tles, clicks, and
squeaks.)
12
miles:
distance
high-
frequency
whistles can
travel
Over
30:
nonverbal
behaviors
(for instance
tail slapping or
rubbing fins)
dolphins use to
communicate
2
months:
time before
a baby dolphin
is born that a
mother might
start “singing” to
her unborn
calf
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