1. THE LIFE OF REGGIE
My Medaka Story by Michael Klingensmith

2. DAY 1
Once upon a time there was a
medaka egg named Reggie. He has
been born for about 33 hours
which makes him in stage 20.
Reggie has no heart beat now since
he was just born and he is just
waiting to hatch. He has filaments,
oil globule, somites, forebrain, and a
yolk sac. All of these structures will
help reggie survive and hatch.
When Reggie was put into my life I
wanted to take care of him so well
and he was going to look just like
me. Reggie needs fresh spring
water to live and to hatch.

3. DAY 2
This is the second day for
Reggie to hatch. As you can
see that there were no new
structures that we were able
to see on Reggie on the
second day. This was the first
day that he had a heart beat
though. This made me very
happy as a parent. Reggie was
now in the stage 24 because
he is beginning to circulating.
Reggie still only needs fresh
spring water everyday to live.

4. DAY 3
This is when Reggie is starting
to get the majority of his body
structures. He gets the blood
vessel, swim bladder, fin, heart,
spleen, and colored blood in
stage 29. Reggie got a dorsal
fin and a heart for him to
swim better when he
hatches. The fresh water is still
being used to help Reggie
survive. Im getting excited
because Reggie’s hatching day
is almost her.

5. DAY 4
The two new body structures
that Reggie get in stage 30 are
the optic cup and the
chorion. The optic cups are
Reggie’s eyes and the chorion
is the outer layer of the body
Reggie. Reggie still uses the
fresh water and is very close
to the hatching stage. He is
now going to be able to see
when he swims.

6. DAY 5
On day five Reggie’s new
structure is the cytoplasm in
the egg of Reggie. He is on the
34th stage.The cytoplasm
holds all of the other
structures in place so the body
is properly developed at the
hatching stage. Reggie’s brain
and head are getting bigger
and better developed. All of his
structures are getting very
strong for him to hatch and he
will hatch very soon.

7. DAY 6
For day six he got his pectoral
fin which is above his stomach
that helps him swim better
once he hatches. He is in the
35th stage and the next one is
the hatching stage so in the
next couple of days he will
hatch and be able to swim
around and be free. In this
stage you can clearly see the
full body structures under a
microscope and Reggie is
there, but he is under the egg.

8. DAY 7
These are two structures that
were on Reggie int the 34th
stage and you can see that he
really didn't change that
much, so he is still in the 35th
stage. He will probably hatch
the next day or in a couple of
hours and I’m so excited. The
structures here are the mouth
that let him eat and the caudal
fin that holds the fins well so
he can swim very fast and the
way he wants too. Im excited
that my son will be born soon.

9. FINAL DAY
This was a great day, when my
boy Reggie was hatched. Stage
36. He looks exactly like me. It
took eight days for Reggie to
hatch for him to get out of his
egg and see me. Reggie is now
in a community fish tank with
all of his friends and is starting
his own life. He crew up so
fast just like it was yesterday,
but i know he can handle
himself on his own.

10. RESOURCES
• -Theslide share Japanese Medaka mitotic images embryonic
development.
• -The medaka fish books given to us in class.