The
Russian
____________________
,
Belka
and
Strelka
,
were
the
first
dogs
to
spend
time
in
____________________
and
come
back
safely
.
They
were
sent
into
orbit
in
August
1960
on
board
the
Russian
____________________
,
Sputnik
5
.
After
a
full
day
in
space
,
the
dogs
landed
back
on
____________________
.
With
them
on
their
day
-
long
trip
to
____________________
____________________
were
42
mice
,
1
rabbit
and
2
rats
.
All
the
animals
came
back
alive
,
but
only
the
dogs
became
____________________
Russian
stars
.
Strelka
later
gave
birth
to
six
puppies
.
One
of
the
____________________
was
given
as
a
gift
to
Caroline
Kennedy
,
the
daughter
of
US
President
John
F
.
Kennedy
.
Caroline
named
the
dog
Fluffy
.
After
Belka
and
Strelka
died
,
their
bodies
were
stuffed
and
put
on
display
in
a
Moscow
____________________
____________________
.
Their
pictures
were
used
on
postage
stamps
,
and
their
story
became
the
very
popular
Russian
cartoon
,
Belka
and
Strelka
-
Star
Dogs
.
