A University of California, Riverside study reports that cells in the earliest stages of human development could be ...

Cell division during the early stage of embryo development is a trade-off between speed and accuracy; the cells need to ...

Explore 25 Old Theories Modern Science Proved Wrong, from flat earth to miasma. Discover how scientific understanding evolves ...

These unusual facts about animal sexuality expose the oddities associated with animal reproduction and sexual habits in ...

The evolutionary case for eating meat is etched into human anatomy — but so is the case against it. The science deserves more ...

We often think of the egg-laying reproductive strategy in nature as being employed by birds. Indeed, while many people ...

Discovery of a Lystrosaurus embryo inside an egg proves early mammal relatives laid eggs and survived mass extinction through ...

Their findings, recently reported in the journal Nature, overturn longstanding assumptions in developmental biology and could change the way scientists think about treatments for a variety of ...

Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the ...

Researchers have unveiled a new biological platform for studying mitochondrial DNA in physiology, adaptation, disease mechanisms, and therapeutic development.

The mammalian cerebrum has changed notably during evolution, with increases in neurons and glial cells accompanied by its expansion and folding. Although these evolutionary changes are thought to be ...

A Florida IVF clinic is being sold amidst a lawsuit after a woman gave birth to a baby that was not genetically hers. The couple who gave birth to the child filed a lawsuit after genetic testing ...