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Gene Drives Work in Mice (if They’re Female)
Biologists have demonstrated for the first time that a controversial genetic engineering technology works, with caveats, in mammals.
The Brain Maps Out Ideas and Memories Like Spaces
Emerging evidence suggests that the brain encodes abstract knowledge in the same way that it represents positions in space, which hints at a more universal theory of cognition.
Jellyfish Genome Hints That Complexity Isn’t Genetically Complex
Jellyfish didn’t need novel genes to take an evolutionary leap in complexity.
Ancient Turing Pattern Builds Feathers, Hair — and Now, Shark Skin
A primordial developmental toolkit shared by all vertebrates, and described by a theory of the mathematician Alan Turing, sets the growth pattern for all types of skin structures.
The Year in Biology
Biologists gained new insights into life’s genomically tumultuous past, viruses as crucial components of life, the hidden talents of complex cells and basic aspects of cognition and memory.
How Complex Wholes Emerge From Simple Parts
Throughout nature, throngs of relatively simple elements can self-organize into behaviors that seem unexpectedly complex. Scientists are beginning to understand why and how these phenomena emerge without a central organizing entity.
A ‘Self-Aware’ Fish Raises Doubts About a Cognitive Test
A report that a fish can pass the “mirror test” for self-awareness reignites debates about how to define and measure that elusive quality.
What a Newfound Kingdom Means for the Tree of Life
Neither animal, plant, fungus nor familiar protozoan, a strange microbe that sits in its own “supra-kingdom” of life foretells incredible biodiversity yet to be discovered by new sequencing technologies.
What Defines a Stem Cell? Scientists Rethink the Answer
As it becomes clear that the body’s cells have more diverse regenerative capabilities than expected, experts have had to reconsider their approach to stem cell research.