Sharks
killed
four
people
and
injured
58
others
around
the
world
in
2006
,
a
comparatively
dull
year
for
dangerous
encounters
between
the
two
species
.
Sharkbite
numbers
____________________
steadily
over
the
last
century
as
humans
reproduced
exponentially
and
____________________
more
time
at
the
seashore
.
But
the
numbers
have
been
?
at
/
____________________
over
the
past
?
ve
years
as
over
?
shing
____________________
the
shark
population
near
shore
and
swimmers
have
____________________
about
the
risks
of
wading
into
certain
areas
,
Bur
g
