Chimpanzees filmed drinking fermented tree sap, lending weight to 'drunken monkey hypothesis'
Environmental groups welcome historic pledge to phase out fossil fuel emissions this century
Critically endangered sawfish may have evolved to reproduce without males in order to escape extinction
Tremors don't usually pose a serious threat to the UK, but a 6.5-magnitude earthquake is 'technically possible'
Record-breaking temperatures in Britain now 13 times more likely, due to human influences, scientist warn
Honeybees 'get a buzz' from the toxic chemicals, raising fears that bee populations could plummet further
New era for renewables predicted, as solar panel production, technology and efficiency improves
Trading standards destroys controversial ingredient, illegally imported from Hong Kong
Conservationists say the cats will help control deer populations but farmers are worried about their sheep
Rising temperatures in UK waters mean that takeaway customers could be asking for battered squid with their chips
Spring hunting season set to begin after a closely contested referendum pitted conservation against tradition
Experts say the US policy on climate change is potentially 'catastrophic'
Wildlife campaigners say the animals significantly increase the biodiversity of wetlands – but fishermen are worried
Climate change means mosquitoes carrying dengue fever could populate parts of Britain, scientists warn
Levels of air pollution could trigger fatal asthma attacks and other health problems among the most vulnerable
Warm water channels discovered below the Totten Glacier could have global consequences, especially in Northern Hemisphere
African elephants have an unparalleled sense of smell and are better than sniffer dogs because they never forget
Wealthy hunters pay a premium to shoot 'Frankenstein freaks of nature' like white lions and golden gnus
Swiss adventurers will fly solar aircraft for 120 hours with stops across the globe to promote clean energy
Six tidal lagoons in Wales, Somerset and Cumbria expected to generate 8% of the UK's electricity