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image: Butterflies Weaponize Milkweed Toxins

Butterflies Weaponize Milkweed Toxins

By Geoffrey Giller | November 4, 2015

Monarch and queen caterpillars store toxic compounds from their milkweed diet to ward off predators into adulthood, a new study suggests.

2 Comments

image: Adding Padding

Adding Padding

By Karen Zusi | November 1, 2015

Adipogenesis in mice has alternating genetic requirements throughout the animals’ lives.

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image: Opinion: Biodefense Innovation Needed

Opinion: Biodefense Innovation Needed

By Joe Lieberman and Tom Ridge | October 28, 2015

To protect against biological threats, federal agencies and other key stakeholders should commit to a strategic, unified approach.

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image: Stem Cell Therapy In Utero

Stem Cell Therapy In Utero

By Kerry Grens | October 13, 2015

An upcoming clinical trial aims to correct for a disease of fragile bones in affected babies before they are born.

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image: Gut Bacteria Linked to Asthma Risk

Gut Bacteria Linked to Asthma Risk

By Jef Akst | October 1, 2015

Four types of gut bacteria found in babies’ stool may help researchers predict the future development of asthma.

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image: Sex on the Brain

Sex on the Brain

By Margaret M. McCarthy | October 1, 2015

Masculinization of the developing rodent brain leads to significant structural differences between the two sexes.

1 Comment

image: Sex Differences in the Brain

Sex Differences in the Brain

By Margaret M. McCarthy | October 1, 2015

How male and female brains diverge is a hotly debated topic, but the study of model organisms points to differences that cannot be ignored.

27 Comments

image: Whaling Specimens, 1930s

Whaling Specimens, 1930s

By Amanda B. Keener | September 1, 2015

Fetal specimens collected by commercial whalers offer insights into how whales may have evolved their specialized hearing organs.

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image: Q&A: Placental Ponderings

Q&A: Placental Ponderings

By Christopher Coe | August 27, 2015

Biologist Christopher Coe answers readers’ questions about the prescient organ.

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image: A Case of Sexual Ambiguity, 1865

A Case of Sexual Ambiguity, 1865

By Amanda B. Keener | August 1, 2015

This year marks the 150th anniversary of an autopsy report describing the first known case of a sexual development disorder.

0 Comments

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