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

Head and neck cancer cells lacking the peptide involved in energy production were less likely to metastasize in mice.

The discovery that a group of cell-infecting bacteria lived roughly 2 billion years ago stirs a longstanding controversy around which came first: phagocytosis or mitochondria.

Increasing mitochondrial activity in worms by engineering a light-activated proton pump into the organelle’s membrane extends the animals’ lifespan without evidence of health decline, according to a preprint.

The accidental finding marks the first time a phenomenon called cytoplasmic sterility, known to occur in plants, has been found in animals.

Studies have found that organisms can inherit mitochondria from male parents in rare instances, and both theoretical and experimental work hint that this biparental inheritance is more than just a fluke.

Sea otters are born with a supercharged metabolism that helps them stay warm in chilly waters.

Researchers identified a novel mechanism by which chemically induced stress is “remembered” by the mitochondria of worms more than 50 generations after the original trigger.

Neurons stressed with chemicals produce Wnt, which in turn triggers changes in the germline.

The mitochondria stolen via these tiny connections give tumor cells a metabolic boost while the T cells are left weakened, according to in vitro experiments.

While exploring suspended animation in mice, scientists discover how an enzyme can protect the brain from dangerously low levels of oxygen.

Vesicles containing fragments of the organelles released from stressed adipocytes protect the heart against oxygen deprivation, a study in mice shows.

Healthy people put through high-intensity interval training, or HIIT, displayed insulin resistance and mitochondrial dysfunction after working out excessively.

Neanderthal DNA surprises in modern humans, the first blood test for Alzheimer’s, a discovery of new human salivary glands, and, oh yeah, a pandemic

An enzyme pulled from toxic bacteria can enter the organelle and perform single-nucleotide DNA swaps.

A complete bird specimen uncovered in northeastern Siberia is radiocarbon dated to be roughly 44,000–49,000 years old.

The findings could represent a novel mechanism for relieving inflammatory pain.

New TALEN-based tools enable the organelle’s genome to be targeted and modified.