It is more of a shadow than a defined dark spot. As the embryo develops and at about day 15 that dark "spot" with take up most of the interior of the shell and not much light with appear from the interior when candled.
You may not be able to see much for the first couple of days, but after about day 3 or 4, you should be able to see a red spot and maybe some veining working across the yolk.
Yes it does. The spot is called 'The Great Dark Spot'
spot can be any color.
No, the dark spot is blood.
The dark spot in the nucleus is called the nucleolus
The dark spot in the nucleus is called the nucleolus
great dark spot ,small dark spot
Neptune itself is cold the dark spot is like the red spot on Jupiter is a storm
it is thougt to be a hole in the methane cloud
Jupiter has the famous "Great Red Spot", caused by storms on its surface. Uranus also has a spot, but it is dark blue in color, not red.
Determining the degree of contamination...
the color of the gravid spot does not have to be black.it could be red becuase 1.color of the mother 2.she is still in the early stages 3.there are only a few fry 4.the position of the fry(eyes=black body=red)
Jaguars are generally spotted with similar color to that of a leopard. The clusters of dark spots, called rosettes, have and additional dark/black spot that differentiates them from leopards. There is also a dark color phase, an animal that is essentially black with a darker black spotting pattern visible within the black coat.