genetics

Researchers at Dana-Farber Cancer Institute report that colorectal cancer in younger patients shows distinct cellular and genetic differences compared with the disease in older adults. The findings, published by the institute, suggest early-onset colorectal cancer may not simply be standard disease occurring earlier in life, which could shape screening and treatment approaches as diagnoses in people under 50 continue to rise worldwide.

Researchers at Texas A&M University are studying the genetics of screwworm flies to improve how authorities respond to outbreaks of the parasitic pest. By analyzing the flies' genetic makeup, the team aims to better track how infestations spread and develop more effective control measures. The work is drawing attention amid ongoing concern about the pest's threat to livestock and the broader agricultural economy.

Researchers have published in Nature a tumor transcriptomic atlas spanning eight decades of life, revealing that colorectal cancer arising in younger patients has distinct molecular features compared with cases in older adults. The work offers a large-scale genetic comparison across age groups and could help explain why diagnoses are rising among younger people and guide new approaches to screening and treatment.

Researchers at the University of Alabama at Birmingham are examining how the term 'precision medicine' is being defined and used as the language of medicine evolves. The discussion reflects a broader shift away from one-size-fits-all treatment toward care tailored to a patient's genetics, environment and lifestyle, with experts debating what the terminology should actually encompass.

A BBC video examining the science of race, human genetics and racism is being shared online after a technical hiccup: the privacy-focused Invidious front end failed to display the video's cover image, prompting the poster to fetch the thumbnail directly and share a YouTube link alongside the Invidious one. The sharer expresses curiosity about the video's framing, inviting others interested in the science of race and genetics to watch.

Indigenous populations living high in the Argentinian Andes have for generations survived on groundwater naturally contaminated with arsenic from volcanic bedrock. Recent genetic analyses show these communities carry specific gene variants that enable them to metabolise arsenic, offering rare evidence of recent human adaptation to a toxic environment and drawing interest from researchers studying human evolution.

Scientists are warning that industrial fishing may be driving genetic changes in fish populations, altering the species at the DNA level. Overfishing pressures fish to evolve rapidly — favoring smaller, earlier-breeding individuals — and researchers say the long-term consequences for marine ecosystems and food supplies remain unknown, raising concern about what comes next.

Zoology, the study of animals, is no longer treated as a separate discipline. Modern research increasingly links it with fields such as genetics, molecular biology, ecology and evolutionary biology, as animal studies now rely on shared tools like DNA analysis and data modelling. This convergence reflects a broader shift in the life sciences toward interdisciplinary approaches that treat animal biology as part of a single, integrated scientific picture.

Genetic Engineering and Biotechnology News reports on the growing intersection of precision automation and biology, highlighting how automated systems are increasingly used in laboratory and biotechnology workflows. The coverage points to automation as a key enabler for faster, more reproducible biological research and production processes. Beyond the headline, no specific companies, products, or findings are detailed, so the scope of the reported trend remains broad.

Scientists studying stray dogs living in the Chernobyl Exclusion Zone have found genetic differences between populations inside and outside the contaminated area, suggesting the animals may be evolving in response to the radioactive environment. The reason for these changes remains unknown, and researchers caution that radiation exposure, isolation and inbreeding could all play a role in shaping the dogs' DNA.