Multi-toxin biotech crops not silver bullets, scientists warn

(Phys.org) —The popular new strategy of planting genetically engineered crops that make two or more toxins to fend off insect pests rests on assumptions that don't always apply, UA researchers have discovered. Their study ...

Study: Hummingbirds migrating earlier in spring

(AP)—Ruby-throated hummingbirds are migrating to North America weeks earlier than in decades past, and research indicates that higher temperatures in their winter habitat may be the reason.

Herbivore defence in ferns

(Phys.org)—Unlike flowering plants, bracken ferns do not release any odour signals to attract the enemies of their attackers for their own benefit.

New clue to combating fumigant resistance in insects

(Phys.org)—New research, published today in prestigious journal Science, has identified the gene responsible for an insect's resistance to a major fumigant used by Australia's grain industry for insect free grain.

Western aspen trees commonly carry extra set of chromosomes

A large proportion of aspen in the western U.S. sport an extra set of chromosomes in their cells, a phenomenon termed triploidy, according to new research published Oct. 31 in the open access journal PLoS ONE by Karen Mock ...

Carson's Silent Spring turns 50

(Phys.org)—Silent Spring, by marine biologist Rachel Carson, was first published 50 years ago this month, and two Perspective articles in the Ecology section of the journal Science examine the legacy of this book, which ...

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