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Tigers face uncertain futures primarily due to habitat fragmentation, human-wildlife conflict, and poaching.
As global tiger populations decline, so does their genetic diversity. But until now it’s been unclear how the animals’ dwindling numbers are affecting them at the genetic level.
To find out, researchers sequenced 65 genomes from four of the surviving tiger subspecies. The findings confirm that strong genetic differences exist between different tiger subspecies but show, surprisingly, that these differences emerged relatively recently, as Earth underwent a major climatic shift and our own species grew increasingly dominant.
“The increasing dominance of humans across the world means that our understanding of which attributes of species and populations are best suited to the Anthropocene becomes ever more important,” says Elizabeth Hadly, professor in environmental biology at Stanford University, referring to the proposed geological epoch marked by significant human im
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Despite being one of the world s most charismatic species, tigers face uncertain futures primarily due to habitat fragmentation, human-wildlife conflict and poaching. As global tiger populations decline, so does their genetic diversity. But until now it s been unclear how the animals dwindling numbers are affecting them at the genetic level.
To find out, researchers at Stanford University, the National Centre for Biological Sciences, India, and various zoological parks and NGOs sequenced 65 genomes from four of the surviving tiger subspecies. Their findings confirmed that strong genetic differences exist between different tiger subspecies but showed, surprisingly, that these differences emerged relatively recently, as Earth underwent a major climatic shift and our own species grew increasingly dominant.
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We all grew up learning about the 7 Natural Wonders of the World, which, up until recently, consisted of The Grand Canyon, The Great Barrier Reef, Harbour of Rio de Janeiro, Mount Everest, Aurora Borealis, Paricutin Volcano and Victoria Falls. In 2001, however, a Swiss corporation called New7Wonders, in conjunction with UNESCO, started an initiative to choose new wonders, based on public voting. On 07/07/07, a brand new list of 7 man-made Wonders was released, after more than 100,000,000 votes from the public were cast. Later in the same year, the 7 New Wonders of Nature campaign was launched, and the Vote count took place on 11/11/11. The announcement was made, and now our new 7 Natural Wonders of the world consists of – The Amazon River, Halong bay, Iquazu Falls, Jeju Island, Komodo Island, Puerto Princesa Underground River and Table Mountain. In this list, I was less interested in looking at the 7 winning entries, as I am sure they will be spoken about for years to come, and mor
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