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image: CRISPR Used in Human Embryos to Probe Gene Function

CRISPR Used in Human Embryos to Probe Gene Function

By | September 20, 2017

OCT4 is necessary for blastocyst formation in the human embryo, researchers report.

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image: North American Ash on Brink of Extinction

North American Ash on Brink of Extinction

By | September 15, 2017

The latest IUCN Red List update also reveals substantial declines in antelopes and other species, but some level of recovery in populations of snow leopards.

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A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.

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image: Book Excerpt from <em>Ecotourism’s Promise and Peril</em>

Book Excerpt from Ecotourism’s Promise and Peril

By , , , and | August 11, 2017

In the introduction to the book, its editors lay out the case for taking a serious, and mechanistic, look at how visiting natural places for pleasure affects ecology and animal behavior.

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image: Ecotourism: Biological Benefit or Bane?

Ecotourism: Biological Benefit or Bane?

By , , , and | August 4, 2017

As nature-based tourism becomes more popular, considering the ecological effects of the practice becomes paramount.

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Research shows that human immunity develops much earlier than previously thought, but functions differently in adults.

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The 19th century biologist’s drawings, tainted by scandal, helped bolster, then later dismiss, his biogenetic law.

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Time-lapse imaging shows the immune cells transferring chemical signals during pigment pattern formation in developing zebrafish.

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image: Infographic: How the Zebrafish Got Its Stripes

Infographic: How the Zebrafish Got Its Stripes

By | May 1, 2017

Immune cells called macrophages shuttle cellular messages in the skin.

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The lungs of extremely premature lambs supported in a closed, sterile environment that enables fluid-based gas exchange grow and develop normally, researchers report.

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