Lab-grown brain models gain a sense of place

The human brain is often described as one of the most complex structures in biology, and much of its power comes from how it's organized. Its outer layer, the cerebral cortex, is not one uniform sheet. As the brain develops, ...

How membraneless organelles assemble into organized protein hubs

Inside every cell, thousands of proteins must reach the right place at the right time. Helping coordinate this complex logistics network are centriolar satellites—tiny, membraneless organelles that play important roles in ...

How sex sheds evolutionary baggage

Why is there sex—or, more precisely, sexual reproduction? If you're an evolutionary biologist, the answer isn't obvious. Sexual reproduction is biologically costly, requiring not only competition for mates but also the creation ...

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