Environment

Scientists say a group living in the Araguaia River, Brazil has been isolated from other varieties for more than two million years

Authorities investigate after dolphins are found with gunshot wounds in Gulf of Mexico

Authorities are investigating several attacks on dolphins in the northern Gulf of Mexico after some were found with gunshot wounds, cuts and missing jaws.

Scientists believe that at least a third of all the marine life forms may be completely unknown to science

A million species of animals and plants live in the ocean say scientists

The first official register of what lives in the oceans has revealed that the marine environment may be home to as many as a million species of animals and plants, but only about a quarter of them have actually been formally described.

A screen shot of the dolphin that was found stranded on the shore in the aftermath of Hurricane Sandy

Dolphin stranded in New Jersey after hurricane

A dolphin has been washed ashore by storm Sandy which made landfall near Atlantic City, New Jersey on Monday evening. The dolphin could be seen squirming on Point Pleasant Beach. Animal rescue officials were called.

Reuters

Lonesome George was the last remaining tortoise of his kind

The tragically early death of Lonesome George (1912-2012)

The giant tortoise's demise means his kind are extinct. Michael McCarthy pays tribute and asks which species is next

There has been a 70% decline in tiger population over 30 years

Wildlife numbers dwindling – and it's all down to us

Crisis warning with global consumption of natural resources at record levels. By Michael McCarthy

Bird deaths trigger health alert in Peru

The Peruvian government has declared a health alert along the country's northern coast and urged people to avoid long stretches of beach, as it investigates the mysterious deaths of hundreds of dolphins and pelicans.

It is unclear whether a virus or underwater sound waves from oil exploration are causing the deaths

Mystery of mass dolphin deaths in Peru

Maritime scientists in Peru are trying to solve a mystery that has turned stretches of the country's beaches into a grim dolphin morgue.

Scientists continue to investigate dolphin deaths off Peru

Scientists and Peruvian officials are investigating a mass die-off of hundreds of dolphins along the South American country's coast.

Album: Morton Subotnick, Electronic Works Vol 3 (Mode)

Morton Subotnick was a 1960s pioneer of classical electronic composition, using his Buchla modular system to access unique tones and timbres, rather than approximate the sounds of acoustic instruments.

Bottlenose dolphins off Brazil drive fish towards fishermen and then swim away, nabbing lunch as they go

Nature: All things bright and beautiful

Scientists are arguing that dolphins are so clever they should be treated like humans. But why stop there? Simon Usborne salutes the smartest species

Marine intelligence: Whales and dolphins are the brains of the oceans

Proposed bill of rights for whales and dolphins

Marine biologists and philosophers have joined forces to support a controversial declaration of rights for whales and dolphins because their astonishing intelligence and emotional empathy makes them equal to humans.

Whales and dolphins are so intelligent they deserve same rights as humans, say experts

Marine biologists and philosophers have joined forces to support a controversial declaration of rights for whales and dolphins on the grounds that their astonishing intelligence and emotional empathy puts them on a par with humans.

Quote of the day: Tony Dolphin

Anna Calvi says of Wild Beasts: 'Their album Smother is great. It's full of subtleties; chords are implied rather than over-emphasised, and the drums are integral to the melodic interest of each song.'

The sounds and songs the stars fell in love with in 2011

Anna Calvi, Ghostpoet and Leslie Feist all made great albums this year. Here, they and others pick the music that rocked their year

Lolita with her trainer

Willy was freed. Now it's time to 'liberate Lolita'

Activists, angry at a killer whale's continuing captivity in a Florida theme park, are off to court

Sport
sportSo, how closely were you paying attention during 2014?
News
One father who couldn't get One Direction tickets for his daughters phoned in a fake bomb threat and served eight months in a federal prison
people... (and one very unlucky giraffe)
Arts and Entertainment
Joel Edgerton, John Turturro and Christian Bale in Exodus: Gods and Kings
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Arts and Entertainment
Brendan O'Carroll as Agnes Brown in the 2014 Mrs Brown's Boys Christmas special
tvCould Mrs Brown's Boys have taken lead for second year?
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Arts and Entertainment
The Plaza Theatre in Atlanta, Georgia was one of the 300 US cinemas screening
filmTim Walker settles down to watch the controversial gross-out satire
Sport
Alexis Sanchez missed a penalty before scoring the opening goal with a header at the back post
footballArsenal vs QPR match report
News
Members and supporters of the lesbian, gay, bisexual, transgender (LGBT) community walk with a rainbow flag during a rally in July
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News
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Day In a Page

Independent Travel
Burgundy, the River Rhone & Provence – Five-star MS Swiss Corona 7 nights from £999pp
Lake Como St Moritz & the Bernina Express 7 nights from £809pp
Vietnam
Lake Maggiore, Orta & the Matterhorn 7 nights from £939pp
South Africa
Spain
Prices correct as of 19 December 2014
A Christmas without hope: Fears grow in Gaza that the conflict with Israel will soon reignite

Christmas without hope

Gaza fears grow that conflict with Israel will soon reignite
After 150 years, you can finally visit the grisliest museum in the country

The 'Black Museum'

After 150 years, you can finally visit Britain's grisliest museum
No ho-ho-hos with Nick Frost's badass Santa

No ho-ho-hos with Nick Frost's badass Santa

Doctor Who Christmas Special TV review
Chilly Christmas: Swimmers take festive dip for charity

Chilly Christmas

Swimmers dive into freezing British waters for charity
Veterans' hostel 'overwhelmed by kindness' for festive dinner

Homeless Veterans appeal

In 2010, Sgt Gary Jamieson stepped on an IED in Afghanistan and lost his legs and an arm. He reveals what, and who, helped him to make a remarkable recovery
Isis in Iraq: Yazidi girls killing themselves to escape rape and imprisonment by militants

'Jilan killed herself in the bathroom. She cut her wrists and hanged herself'

Yazidi girls killing themselves to escape rape and imprisonment
Ed Balls interview: 'If I think about the deficit when I'm playing the piano, it all goes wrong'

Ed Balls interview

'If I think about the deficit when I'm playing the piano, it all goes wrong'
He's behind you, dude!

US stars in UK panto

From David Hasselhoff to Jerry Hall
Grace Dent's Christmas Quiz: What are you – a festive curmudgeon or top of the tree?

Grace Dent's Christmas Quiz

What are you – a festive curmudgeon or top of the tree?
Nasa planning to build cloud cities in airships above Venus

Nasa planning to build cloud cities in airships above Venus

Planet’s surface is inhospitable to humans but 30 miles above it is almost perfect
Surrounded by high-rise flats is a little house filled with Lebanon’s history - clocks, rifles, frogmen’s uniforms and colonial helmets

Clocks, rifles, swords, frogmen’s uniforms

Surrounded by high-rise flats is a little house filled with Lebanon’s history
Return to Gaza: Four months on, the wounds left by Israel's bombardment have not yet healed

Four months after the bombardment, Gaza’s wounds are yet to heal

Kim Sengupta is reunited with a man whose plight mirrors the suffering of the Palestinian people
Gastric surgery: Is it really the answer to the UK's obesity epidemic?

Is gastric surgery really the answer to the UK's obesity epidemic?

Critics argue that it’s crazy to operate on healthy people just to stop them eating
Homeless Veterans appeal: Christmas charity auction Part 2 - now LIVE

Homeless Veterans appeal: Christmas charity auction

Bid on original art, or trips of a lifetime to Africa or the 'Corrie' set, and help Homeless Veterans
Pantomime rings the changes to welcome autistic theatre-goers

Autism-friendly theatre

Pantomime leads the pack in quest to welcome all