Immune cells deliver packages of telomeres to T cells, helping them retain their virus-fighting function over time, research suggests.

A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.

A study finds that engineered exosomes are effective in mice, but their potential use in humans raises safety questions.  

Researchers say they've figured out how some reproductive ants live up to 30 years—far longer than workers.

Frogs invest in cognitive capacity to avoid predators—up until there are too many hungry snakes around for the evolutionary strategy to pay off.

Tortoise leaf beetles enjoy the protection the fungus provides from insect predators such as ants, then carry the microbe to a mutual plant host, which their fungal symbiont infects.

Disturbing circadian rhythms in organoids and mice increases intestinal tumor growth, findings that may explain a recent rise in colon cancer among young adults, the researchers behind the work say.

The simple act of chewing gum can raise the body’s metabolic rate by as much as 15 percent, a study finds.

Immune defense genes in bacteria and archaea can identify viral proteins, a study finds, revealing similarities between the immune systems of prokaryotic and eukaryotic organisms.

By combining deep learning and electron microscopy, researchers now have a more detailed understanding of how fear changes the brain.

Experimental evolution study sheds new light on the origin of animal-microbe symbioses and what it takes for bacteria to support their insect hosts.

Most of the human induced pluripotent stem cells stored at major cell line repositories and used in research harbor thousands of DNA errors, a study finds, highlighting the need for improved quality control measures.

By linking blood flow patterns to bioelectric signals in the brains of sleeping volunteers, scientists are studying the order in which brain regions fall asleep and wake up.

The cells’ mitochondria skip a key metabolic reaction that takes place in other cells in the body, a study finds.

As cricket blastoderms form, cell nuclei are pulled into an egg’s remaining empty space to form the new cell layers that will shape the developing animal.

A species that transports the spermatia of red algae is the first known instance of an animal facilitating fertilization in this ancient photosynthetic lineage.

A previously overlooked enzyme called APOBEC3A is linked to the most prevalent mutational signatures in cancer cell lines, a study finds.

A study finds that not only did aquatic bacteria thrive when chemicals washed from degrading plastic were introduced into lake water, they also broke down organic matter more efficiently.

Oceanic bacteria form a transient spherical community to conquer large food sources, taking on different roles to break down the bounty more efficiently.