Menopausal Mother Nature

News about Climate Change and our Planet

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Discovery of new praying mantis species from the time of the dinosaurs

A research team has identified a new species of praying mantis thanks to imprints of its fossilized wings. It lived in Labrador, in the Canadian Subarctic around 100 million years ago, during the time of the dinosaurs, in the Late Cretaceous period. The researchers believe that the fossils of the new genus and species, Labradormantis guilbaulti, helps to establish evolutionary relationships between previously known species and advances the scientific understanding of the evolution of the most ‘primitive’ modern praying mantises.

How plants produce defensive toxins without harming themselves

Scientists describe the biosynthesis and exact mode of action of diterpene glycosides in wild tobacco. These antiherbivory compounds attack the cell membrane. To protect themselves from their own toxins, tobacco plants store them in a non-toxic form. Autotoxicity and the protection against it seem to play a greater role in the evolution of plant defenses than previously thought.

Evolution: Speciation in the presence of gene flow

Spatial isolation is known to promote speciation — but researchers have now shown that, at least in yeast, the opposite is also true. New ecological variants can also evolve within thoroughly mixed populations.

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2020 tied with 2016 for Earth’s hottest year, as global warming overpowered La Nina – The Keene Sentinel

The year 2020 tied with 2016 for the planet’s warmest on record, capping off the warmest decade ever observed according to new data released Friday by the Copernicus Climate Change Service, a program of the European Commission. Each of the…

New imaging method reveals if antibiotics reach bacteria hiding in tissues

Researchers have developed a new imaging method to see where antibiotics have reached bacteria within tissues. The method could be used to help develop more effective antibiotic treatments, reducing the risk of antibiotic resistance.