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image: What Made Human Brains So Big?

What Made Human Brains So Big?

By Ashley Yeager | May 24, 2018

Ecological challenges such as finding food and creating fire may have led the organ to become abnormally large, a new computer model suggests.

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The finding confirms that a cluster of cells that directs the fate of other cells in the developing embryo is evolutionarily conserved across the animal kingdom.

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image: Conservation Biologist Ben Collen Dies of Bone Cancer

Conservation Biologist Ben Collen Dies of Bone Cancer

By Shawna Williams | May 22, 2018

The University College London researcher investigated how environmental pressures affect animals.

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image: Newly Described Salamander Species Nearly Extinct

Newly Described Salamander Species Nearly Extinct

By Sukanya Charuchandra | May 21, 2018

The Chinese giant salamander is not one but five different species.

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Bigger, older mothers produce disproportionately more eggs than their smaller counterparts do.

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If left unchecked, greenhouse gas emissions will drive ocean temperatures up, affecting wildlife in these regions.

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image: Opinion: How We Found a New Way to Detect “Hidden Sharks”

Opinion: How We Found a New Way to Detect “Hidden Sharks”

By Stefano Mariani and Judith Bakker | May 7, 2018

Given the speed and efficiency of environmental (eDNA) sampling, a much larger portion of the sea can be screened, in a shorter time, for patterns of diversity.

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The agency says it has taken various steps to ensure the privacy of participants’ data. 

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The extracellular matrix appears to inhibit regeneration; but scientists debate whether heart muscle really comes back.  

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image: Image of the Day: Swiss Army Crustacean

Image of the Day: Swiss Army Crustacean

By The Scientist Staff | May 2, 2018

The tools researchers used to study how this amphipod’s limbs develop could help inform our understanding of cell lineages and fates.

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