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  • Embargo expired:
    21-Feb-2018 1:00 PM EST

Article ID: 689814

Ancient DNA Tells Tales of Humans’ Migrant History

Howard Hughes Medical Institute (HHMI)

Fueled by advances in analyzing DNA from the bones of ancient humans, scientists have dramatically expanded the number of samples studied – revealing vast and surprising migrations and genetic mixing of populations in our prehistoric past.

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20-Feb-2018 9:45 AM EST
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Article ID: 689912

Cross-Bred Flies Reveal New Clues About How Proteins Are Regulated

Scripps Research Institute

A team from The Scripps Research Institute (TSRI) has revealed that by crossing two species of flies, they can use what they learn from the proteome of the hybrid offspring to find new clues about how proteins interact with each other

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21-Feb-2018 12:05 PM EST
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  • Embargo expired:
    20-Feb-2018 7:05 PM EST

Article ID: 689846

Brain Size of Human Ancestors Evolved Gradually Over 3 Million Years

University of Chicago Medical Center

Modern humans have brains that are more than three times larger than our closest living relatives, chimpanzees and bonobos. Scientists don't agree on when and how this dramatic increase took place, but new analysis of 94 hominin fossils shows that average brain size increased gradually and consistently over the past three million years.

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20-Feb-2018 1:45 PM EST
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Article ID: 688221

A True Fish Story: Biologist Kingsley on Evolutionary Patterns We Share with Creatures of the Sea, Feb. 23 at NYU

New York University

New York University will host David Kingsley, an evolutionary biologist at Stanford University, for “Fishing for the Secrets of Vertebrate Evolution,” its annual Darwin Lecture, on Friday, Feb. 23.

Released:
20-Feb-2018 8:00 AM EST
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  • Embargo expired:
    19-Feb-2018 11:00 AM EST

Article ID: 689552

Duplicate Genes Help Animals Resolve Sexual Conflict

University of Chicago Medical Center

Duplicate copies of a gene shared by male and female fruit flies have evolved to resolve competing demands between the sexes. New genetic analysis by researchers at the University of Chicago describes how these copies have evolved separate male- and female-specific functions that are crucial to reproduction and fertility.

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14-Feb-2018 1:05 PM EST
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  • Embargo expired:
    15-Feb-2018 12:00 AM EST

Article ID: 689548

Birds and Primates Share Brain Cell Types Linked to Intelligence

University of Chicago Medical Center

In a new study, published this week in the journal Current Biology, scientists from UChicago show that some neurons in bird brains form the same kind of circuitry and have the same molecular signature as cells that enable connectivity between different areas of the mammalian neocortex.

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14-Feb-2018 12:05 PM EST
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Article ID: 689438

Interdisciplinary Approach Yields New Insights Into Human Evolution

Vanderbilt University

Vanderbilt biologist Nicole Creanza takes an interdisciplinary approach to human evolution--both biological and cultural--as editor of special themed issue of Philosophical Transactions of the Royal Society B.

Released:
13-Feb-2018 9:05 AM EST
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  • Embargo expired:
    13-Feb-2018 5:00 AM EST

Article ID: 689277

When It Comes to Extinction Risk, Body Size Matters

Santa Fe Institute

Models for extinction risk are necessarily simple. Most reduce complex ecological systems to a linear relationship between resource density and population growth—something that can be broadly applied to infer how much resource loss a species can survive.

Released:
9-Feb-2018 11:00 AM EST
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Article ID: 688961

Online Tool Speeds Up Evolution Education

Michigan Technological University

The biology teacher's pedagogical toolbox is evolving. Bright colors, replicating computer code and a digital petri dish bring evolution science to life for students.

Released:
5-Feb-2018 11:05 AM EST
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Education

  • Embargo expired:
    25-Jan-2018 2:00 PM EST

Article ID: 688219

Scientists Discover Oldest Known Modern Human Fossil Outside of Africa

Binghamton University, State University of New York

A large international research team, led by Israel Hershkovitz from Tel Aviv University and including Rolf Quam from Binghamton University, State University of New York, has discovered the earliest modern human fossil ever found outside of Africa. The finding suggests that modern humans left the continent at least 50,000 years earlier than previously thought.

Released:
22-Jan-2018 9:00 AM EST
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