Research Alert: A genetic twist that sets humans apart
Peer-Reviewed Publication
Updates every hour. Last Updated: 19-Aug-2025 14:10 ET (19-Aug-2025 18:10 GMT/UTC)
Researchers at UC San Diego School of Medicine discover a genetic twist that sets humans apart: a DNA region called HAR123 that influences cognitive flexibility and brain cell development, providing insights into human evolution and neurodevelopmental disorders.
Researchers with the Arkansas Agricultural Experiment Staiton have found the first evidence that drought and insect herbivory can create lasting, transgenerational effects in soybeans. The stressors not only affect the parent plants but alter the traits and defenses of their offspring. The research demonstrates some of the positive and negative impacts the stressors have on a plant’s progeny and could be used to develop more resilient crops in the same season.
The team found fossils of Homo that confirm the earliest evidence for the human lineage at 2.8 million years ago as well as evidence of Homo at 2.6 million years ago, solidifying the antiquity of Homo. Unexpectedly, the team also found evidence that Homo overlapped at the site with a different type of hominin, Australopithecus, at 2.6 million years ago.