These are the most frequently used words in this book.
another
answer
away
better
between
birds
breakthrough
called
canyon
case
challenge
clues
cognitive
comes
course
different
discovery
does
enough
even
event
evolution
example
exploration
few
find
first
form
four
get
gold
good
help
however
human
idea
insight
kind
klondike
knowledge
line
long
look
man
may
mental
might
mind
need
new
number
oasis
occur
often
organisms
part
pattern
people
perhaps
place
plateau
point
possibilities
problem
process
promise
puzzles
question
rather
reasoning
right
search
second
see
seem
set
side
situation
snap
solution
solver
solving
something
sometimes
space
state
story
take
theory
thinking
three
time
trap
two
variations
ways
word
work
world
years