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.

A newly examined prehistoric shark, Bavariscyllium, challenges long-held beliefs about shark evolution, revealing a much more ...

The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart. According to the theory, all plants, animals and fungi, known ...

A detailed annotation of anatomical brain structures (some novel) of the spider Uloborus diversus is provided based on a ...

Researchers reveal Prototaxites, a giant Devonian fossil, was not a fungus or plant but a unique extinct lineage.

Creatures that can change from one form to another are a staple of science fiction: Think werewolves and Transformers. Nature, too, has its shapeshifters, such as dimorphic fungi. While scientists ...

There are Americans who are "obscenely obese and at the same time malnourished," Health and Human Services Secretary Robert F. Kennedy Jr. says. He blames ultraprocessed food.

“It was the first proof point,” said Pomeraniec. “We could actually take information from the real world, translate it into a ...

Risk prediction has been used in the primary prevention of cardiovascular disease for >3 decades. Contemporary cardiovascular risk assessment relies on multivariable models, which integrate ...

A new study, published in the journal PLOS One, argues that this kind of enduring grief after a pet’s death can reach the ...