hello! first of all i want to compliment you on your blog and your willingness to help others understand Christ. it really is super kind of you, and you've helped me also. i do have a concern though. i am strictly pro-life, but am unfortunately the only one in my vast group of irl who is against abortion. i have a dear friend, who i love very much, who bases her beliefs strictly off of science. she advocates abortion because she believes that before a certain point, fetuses aren't human.
(cont.) i think she believes that if the fetus does not have a brain, or a heart, that it is alright to kill it. supposedly the baby can’t feel pain that early on. i’ve spent a while finding strong, solid arguments against abortion, but it’s that one area that i’m a little fuzzy on. would you mind giving your opinion? thank you—Hi! Thank you for your kind words, friend. :) I’m glad to hear I have helped you!Your friend’s argument isn’t based on science. Instead, it seems like she’s determined what constitutes “life” based on her own definitions, not those of science. Addressing your friend’s argument about pain, life and humanity is not based on a person’s ability to feel pain. You won’t find any biological evidence to support the notion that pain determines human life. If that were the case, it would be ethical to kill those in a comatose or vegetative state because they can’t feel pain. And I would hope your friend would agree that it isn’t morally ethical to murder someone because they’re in a coma. Also, there are people who are born without the ability to feel pain. It’s a rare condition called CIP (congenital insensitivity to pain). Following your friend’s logic, are these people not human because they can’t feel pain? Of course they’re human - they are human from conception, not because of their ability to feel pain.In terms of organ development, a baby’s heart and brain begin to develop at approximately the fifth week of pregnancy. Most women do not realize they are pregnant until weeks 4-7, so if a woman decides to have an an abortion, odds are that baby has already started developing these organs. So if your friend is basing her argument on brain/heart development, that debunks her justification of abortion right there. However, even if a human didn’t start developing a heart or brain until much later, science still isn’t on her side because science doesn’t base the definition of humanity/life on organ development. Science is very clear about the fact that human life is defined at conception when a sperm and egg (gametes) come together to form a human life (zygote) with its own unique set of DNA. Here are some excerpts from biology texts that confirm this:
“The oviduct or Fallopian tube is the anatomical region where every new life begins in mammalian species. After a long journey, the spermatozoa meet the oocyte in the specific site of the oviduct named ampulla, and fertilization takes place.”
Coy et al., Roles of the oviduct in mammalian fertilization, REPRODUCTION 144(6):649 (Oct. 1, 2012)
“Fertilization – the fusion of gametes to produce a new organism – is the culmination of a multitude of intricately regulated cellular processes.”
Marcello et al., Fertilization, ADV. EXP. BIOL. 757:321 (2013)
“Human life begins at fertilization, the process during which a male gamete or sperm (spermatozoo developmentn) unites with a female gamete or oocyte (ovum) to form a single cell called a zygote. This highly specialized, totipotent cell marked the beginning of each of us as a unique individual.”
“A zygote is the beginning of a new human being (i.e., an embryo).”
Keith L. Moore, The Developing Human: Clinically Oriented Embryology, 7th edition. Philadelphia, PA: Saunders, 2003. pp. 16, 2.
“In that fraction of a second when the chromosomes form pairs, the sex of the new child will be determined, hereditary characteristics received from each parent will be set, and a new life will have begun.”
Kaluger, G., and Kaluger, M., Human Development: The Span of Life, page 28-29, The C.V. Mosby Co., St. Louis, 1974.
These are just a few excerpts I took from a great post someone put together with many references to biology texts. You may want to read the entire post for more references, you can find the post here.I hope this helped to clarify your question, if you want to discuss this further, don’t hesitate to ask!