ISTOCK, CIPHOTOS
Bioethics Council: Gene-Editing Human Embryos Conditionally OK
Bioethics Council: Gene-Editing Human Embryos Conditionally OK
The UK-based organization encourages public debate about the issue but does not recommend immediate policy change.
Bioethics Council: Gene-Editing Human Embryos Conditionally OK
Bioethics Council: Gene-Editing Human Embryos Conditionally OK

The UK-based organization encourages public debate about the issue but does not recommend immediate policy change.

The UK-based organization encourages public debate about the issue but does not recommend immediate policy change.

reproduction
Image of the Day: The Long and Short of It
Image of the Day: The Long and Short of It
Sukanya Charuchandra | Aug 20, 2018
For flycatchers, the attractiveness of male birds is tied to the length of their sperm.
Blood Test Predicts Pregnancy Due Date
Blood Test Predicts Pregnancy Due Date
Kerry Grens | Jun 7, 2018
A small study based on circulating RNA in the blood of moms-to-be describes a technique that could be used to help predict who’s most at risk of preterm labor.
Large Female Fish Play a Big Role in Replenishing Populations: Study
Large Female Fish Play a Big Role in Replenishing Populations: Study
Diana Kwon | May 11, 2018
Bigger, older mothers produce disproportionately more eggs than their smaller counterparts do.
Image of the Day: Hold My Brood
Image of the Day: Hold My Brood
The Scientist Staff | May 9, 2018
Cuckoo catfish trick cichlids into caring for their eggs in a strategy known as brood parasitism.
Trailblazing Endocrinologist Neena Schwartz Dies
Trailblazing Endocrinologist Neena Schwartz Dies
Kerry Grens | Apr 27, 2018
The reproductive biologist uncovered hormones important for fertility cycles.
Climate Change Could Shift Timing of Species’ Interactions
Climate Change Could Shift Timing of Species’ Interactions
Ashley Yeager | Apr 16, 2018
The alterations have been greater under rapidly-climbing global temperatures, suggesting key ecological relationships could be disrupted in the future.
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Study Finds Epigenetic Differences Between Hatchery-Raised and Wild-Born Salmon
Shawna Williams | Mar 1, 2018
The variation may help explain why stocked salmon don’t fare as well in the ocean.
To Give Cancer Survivors a Chance to Conceive, Scientists are Designing Artificial Ovaries
To Give Cancer Survivors a Chance to Conceive, Scientists are Designing Artificial Ovaries
Ashley Yeager | Jan 1, 2018
The goal is to house patients’ follicles in a specially designed tissue matrix and reinsert them after treatment.
Image of the Day: Fruit Fly Factory 
Image of the Day: Fruit Fly Factory 
The Scientist Staff | Nov 10, 2017
A fruit fly ovary can contain up to 20 eggs at a time.