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Marine creatures

A new tool for mapping cells reveals how complex regulatory systems evolved to help diverse cell types cooperate

lazy bacteria

A new model of bacterial growth shows that a certain amount of idleness may enable the cell to adapt quickly to a change in fortune

Humans and fish share about 70% of their protein-coding genes, but only about 0.5% of their regulatory long noncoding RNAs (lncRNAs)

How some genes lost the ability to make proteins - and gained regulatory powers 

Lamarck and Darwin playing chess. Illustration: Maya Shleifer

A new mathematical model demonstrates how “fitness” can emerge within a lifetime

Evolution of a protein


A protein "time machine" reveals how proteins may have evolved 

which came first

In evolution, both chicken and egg may come first

Woman in bed

Research suggests that our selfish genes are behind the aches and fever


We share many of our genes with sea urchins, but none of the sequences for long non-coding RNAs that regulate those genes

Non-coding DNA sequences on an evolutionary “fast track” may hold clues to human disease

Chromosome pairs: Does doubling them help or hurt? Image: Wikimedia commons

Does a non-standard number of chromosomes help or hurt the cell?

Inherited expression levels of the resistance gene (green) and the native gene (red), shown in the stomachs of unchallenged larva (left), challenged larva (center) and unchallenged larval offspring of challenged larvae, eight generations later (right)

Can a genetic response to a short-term threat be inherited over the long term?