Embryology reveals surprising similarities between early embryos of seemingly quite different animals. And it also shows that some structures that may look very different later on have fundamental similarities in the way they form.
This was our last stop. This was it. We had those two embryos that we had banked prior to learning about the breast cancer, and with the medicine she was on, this was our last effort. The prayers were answered.
I think I'll probably be pregnant all through my 30s. I've always pictured everyone around the table for the holidays and together once a week. It'll be heartbreaking if it doesn't end up happening, but hopefully it will. We've got some embryos on hold.
To be labeled a 'science-denier' in 2017 often just means you've upset someone who insists on teaching strict, Darwinian orthodoxy in schools or who advocates particular climate legislation or who supports ethically fraught research on embryos.
If you are in support of in vitro fertilization, then you have to recognize that human embryos are being created in excess of what can be used safely to reimplant for a pregnancy. So they're going to end up being discarded.
Is it more ethical to edit embryos or to screen a lot of embryos and throw them away? I don't know the answer.
We can continue to make significant strides in the scientific community by exploring new stem cell research methods that do not include destroying human embryos.
For my part, I have worked all my life with eggs and embryos of frogs. Compared to other small animals, these have figured prominently in the world of literature.
The bill would ban human cloning, and any attempts at human cloning, for both reproductive purposes and medical research. Also forbidden is the importing of cloned embryos or products made from them.
Each year thousands of embryos, no bigger than the head of a pin, are created in the process of in vitro fertilization, with the support of Congress, by the way.
