Wednesday , April 25 2018

Biology

Researchers Find New DNA Structure in Living Human Cells

A team of scientists from the Garvan Institute of Medical Research and the Universities of New South Wales and Sydney has identified a new DNA structure — called the intercalated motif (i-motif) — inside living human cells. A twisted ‘knot’ of DNA, the i-motif has never before been directly seen …

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Researchers Create Plastic-Degrading Enzyme

An international team of researchers from the United States, UK and Brazil has engineered an enzyme which can digest polyethylene terephthalate (PET), the primary material used in the manufacture of single-use plastic beverage bottles, in some clothing, and in carpets. Electron microscope image of enzyme degrading PET plastic. Image credit: …

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Vogelkop Superb Bird-of-Paradise Confirmed as New Species

One of New Guinea’s dancing birds-of-paradise — the Vogelkop Superb Bird-of-Paradise (Lophorina niedda) — was finally confirmed to be an entirely new species, thanks to its distinctive dance. The Vogelkop Superb Bird-of-Paradise (Lophorina niedda). Image credit: Tim Laman. The Vogelkop Superb Bird-of-Paradise is found only in New Guinea’s far-western Bird’s …

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Male Costa’s Hummingbirds ‘Sing’ with Their Tail Feathers

The Costa’s hummingbird (Calypte costae) is a small species of hummingbird endemic to the far west region of the United States and Mexico. During breeding season, male Costa’s hummingbirds perform a high-speed dive during which they ‘sing’ to potential mates using their tail feathers. Unlike related species, male Costa’s perform their …

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Beluga Whales Value Culture and Family Ties: Study

In a groundbreaking genetic kinship study, a research team led by the Florida Atlantic University’s Harbor Branch Oceanographic Institute is the first to reveal that just like human societies, beluga whales (Delphinapterus leucas) appear to value culture and their ancestral roots and family ties. The researchers have demonstrated that related …

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