How did coyotes conquer North America?

  • Pensoft Editorial Team
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  • May 23, 2018
  • Coyotes now live across North America, from Alaska to Panama, California to Maine. But where they came from, and when, has been debated for decades. Using museum specimens and fossil records, researchers from the North Carolina Museum of Natural Sciences and North Carolina State University have produced a comprehensive (and unprecedented) range history of the […]

    New immigrant: Shiny Cowbirds noted from a recording altitude of 2,800 m in Ecuador

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  • May 5, 2016
  • Two juveniles of Shiny Cowbird, a parasitic bird that lays its eggs in the nests of other birds, were spotted in the Andean city of Quito, Ecuador, for the first time. This finding represents an altitudinal expansion of approximately 500 m. Breeding populations might have been prompted by forest fragmentation and/or climate change, suggest the […]

    The owls beyond the Andes: Divergence between distant populations suggests new species

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  • November 13, 2015
  • They might be looking quite identical, while perched above humanised farmlands and grasslands across several continents, but each of the populations of two owl species, living in the opposite hemispheres, might actually turn out to be yet another kind. This suggestion has been made by Dr. Nelson Colihueque and his team from Universidad de Los […]