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DNA

Illustration of two strips of movie film coiled around each other in a double helix.
behavior

Inherited Learning? It Happens, but How Is Uncertain

October 16, 2019

Studies suggest that epigenetics allows some learned adaptive responses to be passed down to new generations. The question is how.

3D illustration of a complex atomic structure.
Abstractions blog

Origin-of-Life Study Points to Chemical Chimeras, Not RNA

September 16, 2019

Origin-of-life researchers have usually studied the potential of pure starting materials, but messy mixtures of chemicals may kick-start life more effectively.

3D illustration of three human skulls, split into left and right halves and nested one inside the next.
evolution

Fossil DNA Reveals New Twists in Modern Human Origins

August 29, 2019

Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways.

VIDEO OPENER: TIME-LAPSE OF FLOWER OPENING.
botany

Unexpected ‘Germline’ Plant Cells May Shield New Generations

August 5, 2019

To avoid passing on new mutations to offspring, plants may minimize the number of divisions by the stem cells that make flowers and seeds.

cell biology

Cellular Life, Death and Everything in Between

July 8, 2019

The discovery that apparently dead cells can sometimes resurrect themselves has researchers exploring how far they can push the point of no return.

Art for "Ancient DNA Yields Snapshots of Vanished Ecosystems"
genomics

Ancient DNA Yields Snapshots of Vanished Ecosystems

May 29, 2019

Surviving fragments of genetic material preserved in sediments allow scientists to see the full diversity of past life — even microbes.

Art for "Scientists Discover Nearly 200,000 Kinds of Ocean Viruses"
Abstractions blog

Scientists Discover Nearly 200,000 Kinds of Ocean Viruses

April 25, 2019

New work raises the estimated diversity of viruses in the seas more than twelvefold and lays the groundwork for a better understanding of their impact on global nutrient cycles.

Art for "Dormant Microbes Bide Their Time Over Decades - Old Fires"
ecology

Heat-Loving Microbes, Once Dormant, Thrive Over Decades-Old Fire

April 16, 2019

In harsh ecosystems around the world, microbiologists are finding evidence that “microbial seed banks” protect biodiversity from changing conditions.

Art for "Researchers Rethink Ancestry of Complex Cells"
evolution

Researchers Rethink the Ancestry of Complex Cells

April 9, 2019

New studies revise ideas about the symbiosis that gave mitochondria to cells and about whether the last common ancestor of all eukaryotes was one cell or many.