A massive study of ancient DNA from nearly 16,000 people across more than 10,000 years in West Eurasia reveals that natural selection has shaped modern human genomes far more than previously thought.
Evolution
7 hours ago
0
59
Among dog breeds, Nova Scotia duck tolling retrievers (tollers) have an unusually high rate of Addison's disease, a condition in which the adrenal glands do not produce enough hormones, notably cortisol and aldosterone. In ...
Plants & Animals
22 hours ago
0
26
A research team has discovered an enhanced CRISPR gene-editing system that could enable targeted delivery inside the human body—a key step toward broader clinical use. Researchers identified a naturally occurring enzyme, ...
Biotechnology
Apr 13, 2026
0
42
Bird flu—specifically H5N1—is no longer just a poultry problem in Asia. What started as a major United States outbreak, first in wildlife, then in poultry, and later in dairy cattle, is raising new concerns about food security, ...
Biotechnology
Apr 10, 2026
0
12
Some animals can regrow lost body parts. Salamanders and frog tadpoles can rebuild entire limbs after amputation. Mammals cannot. For decades, biologists have tried to understand why. Now a team led by Can Aztekin at EPFL ...
Plants & Animals
Apr 9, 2026
0
331
Sometimes, different organisms can evolve the same ability independently, a process called parallel evolution. A new study from Osaka Metropolitan University (OMU) has found that dragonflies sense red light similarly to mammals, ...
Evolution
Apr 9, 2026
0
59
A study published in Cell Research advances a central idea in stem cell biology by identifying a checkpoint that controls the identity of many different types of stem cells across developmental stages. For nearly two decades, ...
Cell & Microbiology
Apr 8, 2026
0
32
A new Yale study of flatworms, a species with the unique ability to regenerate, reveals that disruptions in the body's internal map of cellular organization may play a part in age-related decline.
Cell & Microbiology
Apr 8, 2026
0
45
A quick heart trace taken during a warm-up trot could identify racehorses at risk of cardiac arrhythmias during high-intensity exercise, according to a new study led by the University of Surrey. The screening method analyzes ...
Veterinary medicine
Apr 4, 2026
0
19
Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures that took over the world and would eventually ...
Evolution
Apr 4, 2026
0
80
