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The Scientist

» reproduction and developmental biology

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image: The Sex Paradox

The Sex Paradox

By | July 1, 2014

Birds do it. Bees do it. We do it. But not without a physical, biochemical, and genetic price. How did the costly practice of sex become so commonplace?

13 Comments

image: Arrested Development Makes for Long-Lived Worms

Arrested Development Makes for Long-Lived Worms

By | June 23, 2014

Starvation suspends cellular activity in C. elegans larvae and extends their lifespan. 

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image: Autism-Hormone Link Found

Autism-Hormone Link Found

By | June 4, 2014

A study documents boys with autism who were exposed to elevated levels of testosterone, cortisol, and other hormones in utero.

1 Comment

image: Replication Gone Wrong

Replication Gone Wrong

By | May 29, 2014

Efforts to reproduce an experimental psychology study yield failure, accusations, and ultimately, discourse on how to improve the process.

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image: Female Pigs May Sense Sex of Sperm

Female Pigs May Sense Sex of Sperm

By | May 21, 2014

The oviducts of pigs exhibit different gene expression profiles depending on their exposure to sperm with either an X or a Y chromosome, a study shows. 

3 Comments

image: The Telltale Tail

The Telltale Tail

By | May 1, 2014

A symbiotic relationship between squid and bacteria provides an alternative explanation for bacterial sheathed flagella.

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image: Females in Charge

Females in Charge

By | April 21, 2014

Insects in Brazil go beyond simple behavioral sex-role reversal. In these animals, the females use an erectile organ to penetrate the male’s genital chamber.

1 Comment

image: Women Receive Lab-Grown Vaginas

Women Receive Lab-Grown Vaginas

By | April 14, 2014

Doctors implant custom-made organs, built from a tissue sample and a biodegradable scaffold, into four female patients born with underdeveloped or missing vaginas.

1 Comment

image: Mapping Gene Expression in the Fetal Brain

Mapping Gene Expression in the Fetal Brain

By | April 2, 2014

Researchers complete an atlas depicting gene expression across the developing human brain.

1 Comment

image: Birth Defects Marked End of Mammoths

Birth Defects Marked End of Mammoths

By | March 26, 2014

New research suggests that the wooly beasts may have succumbed to a shrinking gene pool or intense environmental pressures as their species went extinct.

1 Comment

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