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Image of the Day
Infographic: Macrophages Around the Body
Claire Asher | Sep 30, 2017
In addition to circulating in the blood as immune sentinels, macrophages play specialized roles in different organs around the body.
Fetal Immune System Operational by Second Trimester
Abby Olena | Jun 14, 2017
Research shows that human immunity develops much earlier than previously thought, but functions differently in adults.
Artificial Womb Supports Premature Fetal Lamb Development
Tracy Vence | Apr 25, 2017
The lungs of extremely premature lambs supported in a closed, sterile environment that enables fluid-based gas exchange grow and develop normally, researchers report.
Birds Warn Unborn Chicks About Warmer Weather
Alison F. Takemura | Aug 22, 2016
Zebra finches sing a special song that appears to help their offspring better adapt to a hotter climate, according to a study.
Is Bilingualism Good for Kids?
Elizabeth Fiedler | Jul 1, 2016
New research suggests that raising kids in a dual-language environment might be better for their verbal development than previously realized.
Q&A: Placental Ponderings
Christopher Coe | Aug 27, 2015
Biologist Christopher Coe answers readers’ questions about the prescient organ.
Rethinking Lymphatic Development
Amanda B. Keener | Aug 1, 2015
Four studies identify alternative origins for cells of the developing lymphatic system, challenging the long-standing view that they all come from veins.
The Prescient Placenta
Christopher Coe | Aug 1, 2015
The maternal-fetal interface plays important roles in the health of both mother and baby, even after birth.
Sperm Stem Cell Maintenance
Jenny Rood | Mar 2, 2015
A missing transcription factor puts an early end to sperm production in mice.
Stems Cells Ushered into Embryonic Development
Kerry Grens | Nov 7, 2014
The right mix of mouse embryonic stem cells in a dish will start forming early embryonic patterns, according to two studies.