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biology

Two new papers urge caution in using powerful genome-editing technology against invasive species: Models show that aggressive gene drives can’t be contained in the wild.
Abstractions blog

New Model Warns About CRISPR Gene Drives in the Wild

Two new papers urge caution in using powerful genome-editing technology against invasive species: Models show that aggressive gene drives can’t be contained in the wild.

The oldest law of genetics says that gametes combine randomly, but experiments hint that sometimes eggs select sperm actively for their genetic assets.
genetics

Choosy Eggs May Pick Sperm for Their Genes, Defying Mendel’s Law

The oldest law of genetics says that gametes combine randomly, but experiments hint that sometimes eggs select sperm actively for their genetic assets.

Bacterial biofilms and slime molds are more than crude patches of goo. Detailed time-lapse microscopy reveals how they sense and explore their surroundings, communicate with their neighbors and adaptively reshape themselves.
Multimedia

Seeing the Beautiful Intelligence of Microbes

Bacterial biofilms and slime molds are more than crude patches of goo. Detailed time-lapse microscopy reveals how they sense and explore their surroundings, communicate with their neighbors and adaptively reshape themselves.

In applying game theory to biology and human behavior, have scientists focused too much on competition over cooperation?
insights puzzle

How to Triumph and Cooperate in Game Theory and Evolution

In applying game theory to biology and human behavior, have scientists focused too much on competition over cooperation?

Elephants did not evolve to become huge animals until after they turned a bit of genetic junk into a unique defense against inevitable tumors.
genomics

A Zombie Gene Protects Elephants From Cancer

Elephants did not evolve to become huge animals until after they turned a bit of genetic junk into a unique defense against inevitable tumors.

Which mattered first at the dawn of life: proteins or nucleic acids? Proteins may have had the edge if a theorized process let them grow long enough to become self-replicating catalysts.
origins of life

Life’s First Molecule Was Protein, Not RNA, New Model Suggests

Which mattered first at the dawn of life: proteins or nucleic acids? Proteins may have had the edge if a theorized process let them grow long enough to become self-replicating catalysts.

If you didn’t get a flu shot, you are endangering more than just your own health. Calculations of herd immunity against common diseases don’t make exceptions.
Quantized Columns

The Unforgiving Math That Stops Epidemics

If you didn’t get a flu shot, you are endangering more than just your own health. Calculations of herd immunity against common diseases don’t make exceptions.

Minor genetic changes can have big evolutionary consequences. When a gene duplication gave some water striders a novel leg part, it opened up a new world for them.
evolution

Insects Conquered a Watery Realm With Just Two New Genes

Minor genetic changes can have big evolutionary consequences. When a gene duplication gave some water striders a novel leg part, it opened up a new world for them.

Studies of the energy-harvesting proteins in primitive cells suggest that key features of photosynthesis might have evolved a billion years earlier than scientists thought.
evolution

Simple Bacteria Offer Clues to the Origins of Photosynthesis

Studies of the energy-harvesting proteins in primitive cells suggest that key features of photosynthesis might have evolved a billion years earlier than scientists thought.