One of the biggest quests in biology is understanding how every cell in an animal's body carries an identical genome yet still gives rise to a kaleidoscope of different cell types and tissues. A ...

Surprising animal behaviors, from birds to amphibians, are revealing deep biological processes. Scientists are uncovering how viruses manipulate cells, how the immune system balances defense, and how ...

An international team of researchers has achieved an unprecedented milestone: the creation of mouse stem cells capable of generating a fully developed mouse using genetic tools from a unicellular ...

Add Yahoo as a preferred source to see more of our stories on Google. Specialized compartments within cells carry out specific functions. Christoph Burgstedt/Science Photo Library via Getty Images ...

Quick Take Eastern Emerald Elysia rely on the algae Vaucheria litorea to complete its development. The sea slug retains ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

From studying disease mechanisms to testing new therapeutics, animal models have long served as essential tools in molecular biology research. However, animal models have limitations, including ...

For much of the 20th century it was thought that the adult brain was incapable of regeneration. This view has since shifted dramatically and neurogenesis – the birth of new neurons – is now a widely ...