The Isthminia panamensis is the closest relative of the living Amazon river dolphin
Wrestling Komodo dragons, a shark-repellent surfboard and a concerned gorilla are among the finalists in Wildlife Photographer of the Year 2015.
Physicist Cox says extraterrestrial life may well exist in our solar system, but it is unlikely to be complex.
US President said steps must be taken to reduce carbon emissions as protesters greeted him.
The newly discovered eurypterid was up to 1.7m long.
Nasa funded mission will see scientists spend 365 days in small dome in Hawaii.
The celestial phenomenon is the result of a lunar perigee coinciding with the full moon.
The White House made the announcement on the eve of President Obama's trip to Alaska.
Nomad jellyfish are one of a number of invasive species that have travelled through the Suez canal.
Britain is to be hit with worth of rain in 8 hours on Sunday afternoon, and more on Monday.t
Maastricht University's study is the first to examine short-term effects of cocaine on emotions
Journalist Bryan Christy tracked ivory trade in Africa with GPS device hidden in fake tusk.
Research identifies the Baryonyx, an entirely new species in the UK that lived 200 million years ago.
Nasa recruits have started a year of living in a dome near a Hawaii volcano.
Dog in Florida has first surgery to give her a new nose and jaw after suffering horrific abuse.
The third-strongest hurricane ever in the US made a direct hit on New Orleans on 29 August 2005.
4,500-year-old settlement discovered in Argolic Gulf the size of 10 football fields.
NOAA says tropical storm Erika will continue to batter the Caribbean with 10 inches of rain in Dominican Republic.
12 people have been killed in Dominica by the storm which is headed across the Atlantic.
The giraffe calf is still being bottle-fed three times a day.
A large breakout of lava from a volcano on Hawaii's Big Island has flowed into the surrounding forest.
Watch the miracle of birth, with a disgusting twist
Full moon and lunar perigee will coincide to make it appear especially big.
Prehistoric monster shark tooth discovered by Croatian man on banks of the Kupa river.
What does it mean if the majority of what's published in journals can't be reproduced?
The 85-year old hopes to help get people on the Red Planet by 2040
Physicists find leptons treated in 'strange ways' not predicted by Standard Model.
The marine mollusc Allonautilus scrobiculatus has been seen near Papua New Guinea.
Dr Lucy Bowes says some young goths are more vulnerable to developing these conditions.
Scientists say the world is "locked in" on a 3ft (1m) sea level rise, driven by climate change.