The complexity of living organisms is encoded within their genes, but where do these genes come from? Researchers resolved outstanding questions regarding the origin of small regulatory genes, and described a mechanism that creates their DNA palindromes. Under suitable circumstances, these palindromes evolve into microRNA genes.
A recent study has revealed that an unlikely event, occurring over 12 million years ago played an important role in shaping one of Canada's most damaging invasive species. Zebra and quagga mussels, belonging to the Dreissenid family, are widespread freshwater invasive species throughout North America that present a significant danger to native ecosystems by competing for resources. Using a fibrous anchor called a byssus, Dreissenid mussels contribute to biofouling on surfaces and obstruct intake structures in power stations and water treatment plants.
After more than a decade of developing fluorescent probes, a research team has now released the culmination of their years of work: A comprehensive collection of rhodamine-based dyes, the novel chemistry they developed to synthesize them and insights that provide a roadmap for designing future probes.
Some scientists have argued the small-brained H. naledi buried their dead in Rising Star Cave in South Africa more than 240,000 years ago, and may also have decorated the cave walls with engravings. But not all are convinced
It added that the SUIT observations will help scientists study the dynamic coupling of the magnetized solar atmosphere and assist them in placing tight constraints on the effects of solar radiation on Earth’s climate
The smaller star, called an M star, is not only smaller than the Sun in Earth’s solar system, but it’s 100 times less luminous
Some 44 years ago, people found a cabbage plant with a natural mutation that destroyed the plant’s ability to make pollen.
Shidaowan plant in China's northern Shandong province is designed to use fuel more efficiently and improve its economics, safety and environmental footprint
The announcement came 10 years after Iran announced it had sent two live monkeys into space and brought them back safely
At COP28 in Dubai, more than 80 countries are pushing for a broader pact to phase out all CO2-emitting fossil fuels.
The fossil displayed exceptionally sharp and triangle-shaped jaw anatomy and an elongated structure with tooth-like projections
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