Dolphins could give us the lowdown on the ocean,
describing some areas we’ve never been to.
That’s important, because humans have explored
less than five percent of the ocean. We could also
discover cool secrets about the animals, such
as how they produce the high-frequency clicks
they make for echolocation.(That’s when they
listen for their echoes to bounce off objects;
that determines if any obstacles are in their
path.) And dolphins and humans could coordinate
efforts to rescue travelers lost at sea or track
down people who harm the ocean by overfishing.What would happen if Earth
had rings like Saturn?
It’s good that Earth doesn’t have rings. Saturn’s rings are made
of countless pieces of rock and ice that can be as tiny as a grain
of sand or as big as a house. If Earth had similar rings, they’d be
positioned in a way that would block sunlight and cast a shadow
over the Northern and Southern Hemispheres during each
region’s winter. (That’s when the hemispheres are tilted away
from the sun.) Both areas would be darker and colder at these
times. With less light coming in, crops and plants that depend
on the sun to survive the season might die out. No thanks!
wanna
play
marco
polo?What would happen
if we could talk
with dolphins?
What would happen if
humans had tails?
If our tails were prehensile (meaning they could grip things), we
could use them as a third arm to carry groceries or open doors.
They’d change the way we communicate too. We’d make gestures
with our tails to express happiness, anger, and other emotions,
just as we do with our hands. In fact having tails might make it
harder for us to hide our feelings! Tails would also give us better
balance as they do with animals such as cats and monkeys. This
would make activities like climbing trees way easier.NATIONAL GEOGRAPHIC KIDS 7
BY CRISPIN BOYER ART BY JOE ROCCOCHECK
OUTTHE
BOOK!