Why this little-known birth control option deserves more attention
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Updates every hour. Last Updated: 15-Jun-2026 18:16 ET (15-Jun-2026 22:16 GMT/UTC)
“Honey, will you take Luna to the P-A-R-K?” both parents and dog owners know that some words should not be spoken, but only spelled, to prevent small ears from eavesdropping on the conversation. At the age of 1.5 years toddlers can already learn new words by overhearing other people. Now, a groundbreaking study published in Science reveals that a special group of dogs are also able to learn names for objects by overhearing their owners’ interactions. Similarly to 1.5 -year-old toddlers, that are equally good in learning from overheard speech and from direct interactions, these gifted dogs also excel in learning from both situations
The human brain is not a fast-healing organ. Normally it doesn’t need to be as adult brain cells are stable and last for a lifetime. When trauma or disease such as a stroke occurs, the brain struggles to bounce back because it has a limited ability to regenerate lost cells.
Stem cell therapy is a promising method for boosting regeneration in the brain, but transplanted cells have struggled to replace damaged tissue and reestablish broken circuits. In a new study of a therapy derived from human stem cells and transplanted into mice, the cells matured, integrated into existing circuits and restored function. By tracing the cells and sequencing their gene expression patterns, the researchers also revealed how transplanted cells find where they need to go and form connections with the nervous system.A study based on Finnish twins shows that reproductive history is associated, at the population level, with women’s lifespan and biological aging. In the study, mothers of large families, women who had no children, or women who had their first child at a very young age appeared to age somewhat faster than other women.
Researchers at The University of Osaka used a range of cellular techniques to show that the histone protein CENP-A can be deposited into centromeres by two independent pathways. By identifying that CENP-C can substitute for Mis18C in binding to the chaperone HJURP to prompt CENP-A deposition, they showed that there is redundancy in the process of specifying the location of the centromere on chromosomes, which is essential for mitosis and meiosis.