2. Today was a very exciting day
in Mrs. Maine’s first period
Biology class. Jamie Bush and I
found out we are going to be the
parents of a Japanese Medaka
Egg. We decided to name it
Jamaal. We are now ready to
take on this big responsibility.
Let the parenting begin. .
3. Day 1
On day one the of development of somites >
Jamaal was just a little baby still in his
egg, he was in stage 12. We were very
wrong about our stage because we
couldn’t see the structures at first but
once we did, we determined that he was
in stage 17. Stage 17 is when he is
fertilized.
Cytoplasm
4. Day 2
Day 2 was the first day of ^ pink
Jamaal’s heartbeat. Jamaal’s
little heart was beating 66 blood
beats per minute. He had a
huge jump over the past 24
hours and is now on stage 24.
5. ^ If you look closely,
you can
see the
heartbeat.
^ Oil globule
Yolk sac ^
Day 2 video
6. Day 3
Day 3, Jamaal heartbeat was
116 beats per minute. We also
had pink blood flow which is a ^ Urinary
very good sign in terms of his
development. He is in stage Bladder
28. He now has eyeballs.
Jamaal should be hatching in
the next few days, yay.
7. Jamaal’s heart was beating like crazy today
at 136 beats her minute! The blood looked
a little darker in color. He is in stage 29. As
you can see, several of his organs are
visible as well.
^ red
blood
Day 4
8. Day 5
< eyes
Jamaal’s heart has beating 138 beats per
minute today; he is now in stage 30. He got his
first fin today and moves it very quickly, he is
definitely going to be a fast swimmer!
^ blood
vessel
9. Filament >
Day 6
Jamaal’s heart was beating 127
today. He is stage in 31. His
tail is now very visible. We are
anxiously awaiting for the little
guy to hatch,
^ Dorsal Fin
10. Day 7
On day 7, Jamaal is just about
to hatch! His heart is beating
at about 130 beats per minute
and he is ready to get out of
that egg! He is getting so big
he is about to bust out of that
egg. He is now in stage 33.
somites >
11. Day 8
Jamaal has hatched ! He
is a very big guy
compared to the other
fish in the class. He is
ready to go swim with the
brain > other fish but it was
interesting to try to get
some pictures if him
before we set him free. it
was vey sad but as the
^ mouth parents, we did it.
