1.   He also opened fertile chicken eggs and concluded, falsely, that the heart was the first organ to develop.

2.   The availability of dish-grown fertile human eggs is not the only goal of his research, nor even the most important one, in his view.

3.   The biggest part of their production, marketed under the Rock Island label, are fertile brown eggs.

4.   The fertile eggs are taken to the hatchery, a larger wooden building, where the eggs are sorted, incubated and hatched.

5.   Researchers at the center said the other fertile egg continued to show signs of hatching.

6.   Researchers at the ibis center put the remaining fertile egg in an incubator Thursday.