Once again, biotechnology is racing ahead of our capacity to intellectually digest what is happening.
The last thing that abortion-rights activists want is an accurate description of what a pregnancy termination destroys.
According to current systematic theory, everyone reading this right now belongs to the taxonomic category Deuterostomia.
I’ve watched many Khan Academy videos over the years — sometimes just for fun, and sometimes to advise teachers on whether they are good tools to use.
Previously, Dr. Wells showed that embryo development requires information carried by membrane patterns in embryonic cells.