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evolution

Sex might help natural selection purge excessive mistakes from our genes.
molecular biology

Missing Mutations Suggest a Reason for Sex

Sex might help natural selection purge excessive mistakes from our genes.

Asexual reproduction can produce twice as many offspring as sexual reproduction without the hassle of finding and courting a mate. So why do most complex animals have two sexes? Why not three?
insights puzzle

Why Are There Two Sexes?

Asexual reproduction can produce twice as many offspring as sexual reproduction without the hassle of finding and courting a mate. So why do most complex animals have two sexes? Why not three?

The evolutionary biologist Jessica Flack seeks the computational rules that groups of organisms use to solve problems.
Q&A

How Nature Solves Problems Through Computation

The evolutionary biologist Jessica Flack seeks the computational rules that groups of organisms use to solve problems.

If gut bacteria can sway their hosts to be selfless, it could answer a riddle that goes back to Darwin.
evolution

Can Microbes Encourage Altruism?

If gut bacteria can sway their hosts to be selfless, it could answer a riddle that goes back to Darwin.

An unexpected mechanism allows wasps to rapidly co-opt genes for new toxic functions.
evolution

Moonlighting Genes Evolve for a Venomous Job

An unexpected mechanism allows wasps to rapidly co-opt genes for new toxic functions.

A definitive explanation for why plants evolved spines remains elusive, and human biases compound the problem.
evolution

The Thorny Truth About Spine Evolution

A definitive explanation for why plants evolved spines remains elusive, and human biases compound the problem.

How Darwinian natural selection can produce and sustain a Lamarckian “inheritance of acquired characteristics.”
insights puzzle

Solution: ‘Darwinian Evolution Explains Lamarckism’

How Darwinian natural selection can produce and sustain a Lamarckian “inheritance of acquired characteristics.”

Spiders appear to offload cognitive tasks to their webs, making them one of a number of species with a mind that isn’t fully confined within the head.
cognitive science

The Thoughts of a Spiderweb

Spiders appear to offload cognitive tasks to their webs, making them one of a number of species with a mind that isn’t fully confined within the head.

Answering three questions can help reveal how the “inheritance of acquired characteristics” fits into modern evolutionary theory.
insights puzzle

Can Darwinian Evolution Explain Lamarckism?

Answering three questions can help reveal how the “inheritance of acquired characteristics” fits into modern evolutionary theory.