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Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.

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image: Developer of Amniocentesis Dies

Developer of Amniocentesis Dies

By | May 4, 2017

John Littlefield pioneered the use of the prenatal testing method in diagnosing genetic disorders in the womb.

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image: More Details on How Pesticides Harm Bees

More Details on How Pesticides Harm Bees

By | May 3, 2017

Scientists report that thiamethoxam exposure impairs bumblebees’ reproduction and honey bees’ ability to fly.

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From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.

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Guppies transplanted between different communities in Trinidadian streams evolved in response to changes in predation threat in just a few generations.

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By analyzing the genomes of 161 dog breeds, scientists discover how and when certain canine breeds emerged.

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image: Migratory Eels Use Magnetoreception

Migratory Eels Use Magnetoreception

By | April 14, 2017

In laboratory experiments that simulated oceanic conditions, the fish responded to magnetic fields, a sensory input that may aid migration.

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Scientists identify a mutation in the CRY1 gene in people with abnormal sleeping patterns.

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image: Mutations Linked to Secondary Cancers

Mutations Linked to Secondary Cancers

By | April 4, 2017

Childhood cancer survivors with mutations in certain cancer-risk genes have a higher risk of developing additional neoplasms later in life, according to research presented at the American Association for Cancer Research annual meeting.

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image: Image of the Day: Colorful Chromosomes

Image of the Day: Colorful Chromosomes

By | March 16, 2017

This 3-D model of the mouse genome depicts the interactions between chromosomes within an embryonic stem cell.

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