Many state legislatures are seriously considering human embryos at the earliest stages of development for legal personhood. Total abortion bans that consider humans to have full rights from the moment ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SA As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of ...

The following references illustrate the fact that a new human embryo, the starting point for a human life, comes into existence with the formation of the one-celled zygote: "Development of the embryo ...

Recently, the Department of Health and Human Services released a draft of its latest strategic plan, which will guide the agency from 2018 to 2022. Near the top of the document, the agency presents ...

Last week, the Department of Health and Human Services released a draft of its latest strategic plan, which will guide the agency from 2018 to 2022. Near the top of the document, the agency presents ...

The Supreme Court recently declined on procedural grounds to enjoin a Texas law prohibiting abortions after the sixth week of pregnancy. The court stated unequivocally that its decision was "not based ...

The process of human ovulation has long been shrouded in mystery. We know that once or twice a month, women release tiny eggs from their ovaries into their fallopian tubes, which usher eggs into the ...

A new U.S. Department of Health and Human Services (HHS) draft Strategic Plan for 2018 through 2022 contains verbiage defining human life as "beginning at conception" (i.e. with the fertilization of ...

A pregnancy test detects the presence of the pregnancy hormone human chorionic gonadotropin, or hCG, in a person’s body. But the body doesn’t produce that hormone until several days after conception.

Sahotra Sarkar does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...