In the oceans and on land, scientists are discovering rare, transitional organisms that bridge the gap between Earth’s simplest cells and today’s complex ones. By Carl Zimmer A flurry of new studies ...

Tom has a master’s degree in biochemistry from the University of Oxford and his interests range from immunology and microscopy to the philosophy of science.View full profile Tom has a master’s degree ...

"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical integrity." When you purchase through links on our site, we may earn an ...

Here’s what you’ll learn when reading this story: Chondrichthyan fishes—a group that includes rays, skates, chimaeras, and sharks—are thought to have energy intensive reproduction cycles due in no ...

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to be costly. Scientists tracked metabolism, blood, and hormone levels ...

Scientists have discovered that complex life began evolving much earlier than traditional models suggested. Using an expanded molecular clock approach, the team showed that crucial cellular features ...

A research team from the Faculty of Science, Charles University in Prague has discovered Solarion arienae, an extremely rare and morphologically unique unicellular eukaryote that sheds new light on ...

An artificial “superfood” that provides essential nutrients for bees results in colonies producing much more larvae, suggesting it could help tackle the global decline in honeybees. Bees need to eat ...

In the debate over human origins and the nature of sexual reproduction, religious and scientific perspectives often diverge. The Bible claims man came first, with women derived from man’s rib. Yet, ...

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation and ...

If you’ve ever had a spiny leaf insect as a pet, or you’re considering getting one, hopefully someone has warned you about this: if you put one in your enclosure, you might come back some time later ...

Third-party reproduction—using donor sperm, donor eggs, or surrogates to conceive—is often met with mixed emotions and discomfort. Although these methods help individuals and couples build families, ...