Archive for December 8th, 2016:

Fire ants could become Australia’s worst pest, experts warn

Image copyright Biosecurity Queensland Image caption Time is running out to eradicate the red imported fire ant, experts say Red fire ants could wreak more damage in Australia than feral rabbits, cane toads and foxes combined, experts have warned in a new report. Originally from South America, the red imported fire ant is feared for

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DNA clue to how humans evolved big brains

Image copyright Science Photo Library Humans may in part owe their big brains to a DNA “typo” in their genetic code, research suggests. The mutation was also present in our evolutionary “cousins” – the Neanderthals and Denisovans. However, it is not found in humans’ closest living relatives, the chimpanzees. As early humans evolved, they developed

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Giraffes facing ‘silent extinction’ as population plunges

Image copyright IUCN Image caption A combination of factors has helped drive down giraffe populations in many parts of Africa A dramatic drop in giraffe populations over the past 30 years has seen the world’s tallest land mammal classified as vulnerable to extinction. Numbers have gone from around 155,000 in 1985 to 97,000 in 2015

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© Warren Fyfe