Pigeons fly outside St. Stephen's Cathedral, Vienna

Does a truck carrying birds get lighter when they take off? New bird measuring kit solves physics riddle

Previous tests showed that the weight would stay the same — but new precise measurements show that it would actually fluctuate

A thresher shark gives birth off the Philippines

Rare shark birth photographed for the first time

The picture was taken during a research dive in the Philippines in 2013

Trunk and disorderly: The elephant attacked several cars in behaviour blamed on the mating season

Thailand's Khao Yai national park facing jumbo-size traffic problem after elephants attack cars

The aggressive behaviour is a result of the mating season

The Antarctic has a population of 4,000 - but what does it take to work in a wilderness of 70-knot winds and marauding penguins?

A century after Shackleton set out to conquer the Antarctic, thousands of people call the seventh continent home over its summer months, from sailors to scientists and conservationists to climbing instructors
The New Forest; it is feared that Britain’s forests could suffer a similar fate to woodlands in much of the US, where vast stands of trees have been wiped out by beetles

Trees under threat: The oak, beech and birch could be lost if Britain does not act quickly

They help define our landscape, but it could be radically altered over the next century unless steps are taken to stop the onslaught of pests
Conservation groups have appealed for cotton mittens for koalas

Conservation groups appeals for mittens for koalas with burned paws

Conservation groups have appealed for people to make cotton mittens for koalas whose paws were burned in major wildfires in Australia.

Dozens of Pikachu characters parade at the Landmark Plaza shopping mall Tokyo on 14 August, 2014

China faces criticism from conservation scientists for attempts to exterminate real-life 'Pikachu' with mass poisoning

Ecologists hit out at classification of the mouse-like 'pika' as a pest – and say policy-makers are ignoring all the evidence in their favour

If you upturn a tortoise, it will find its feet again, thanks to a clever combination of shell shape and leg and neck manoeuvres

The topsy-turvy world of the tortoise: a smaller shell helps them to walk tall

Larger specimens are less adept at righting themselves when they are flipped on to their backs, study finds
Salacia arenicola, a climbing shrub from Republic of Congo

Kew Gardens scientists discover ingenious new 'gobstopper' fruit tree

The scientists also discovered a giant bean tree and one of the 'most irritating' plants in the world among 70 new species unearthed this year

Whale sharks can reach sizes of up to 18m in length and weigh more than 30 tonnes

Whale sharks to be tagged to save species

Technology will uncover the mating secrets of these enigmatic giants
Nick Marx leads the project at Angkor Wat

The Englishman returning wildlife to Cambodia's Angkor Wat temple complex

The 're-wilding' of the forests near the ancient site could be a model for other projects
Langdon Meadows, Essex. Bumblebees, butterflies, orchids,
bats and songbirds share these pastures. Plans for a 725-home development on the site near Basildon have been approved

Local wildlife sites not protected by statute are being ruined by development, warns report

A tenth of 'secret spaces' have been lost or damaged in the past five years

Northern white rhino dies at San Diego Zoo Safari Park to leave just five left in the world

Angalifu was one of the only two remaining males in the species of rhinoceros

Maligned
Hyenas in The Lion King (centre) and in reality (left, right)

A hyena for Christmas? You're having a laugh

They've had lousy PR but these animals can be adorable – and they need our protection
Polar bear Giovanna and her twin polar bears Nela and Nobby eat an ice cake with fresh fruit and cream to celebrate the cub's first birthday

Polar bear birthday party becomes traffic cone rave at Munich zoo

Nela and Nobby celebrated their first birthday yesterday

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Day In a Page

A Very British Coup, part two: New novel in pipeline as Jeremy Corbyn's rise inspires sequel

A Very British Coup, part two

New novel in pipeline as Jeremy Corbyn's rise inspires sequel
Philae lander data show comets could have brought 'building blocks of life' to Earth

Philae lander data show comets could have brought 'building blocks of life' to Earth

Icy dust layer holds organic compounds similar to those found in living organisms
What turns someone into a conspiracy theorist? Study to look at why some are more 'receptive' to such theories

What turns someone into a conspiracy theorist?

Study to look at why some are more 'receptive' to such theories
Chinese web dissenters using coded language to dodge censorship filters and vent frustration at government

Are you a 50-center?

Decoding the Chinese web dissenters
The Beatles film Help, released 50 years ago, signalled the birth of the 'metrosexual' man

Help signalled birth of 'metrosexual' man

The Beatles' moptop haircuts and dandified fashion introduced a new style for the modern Englishman, says Martin King
Hollywood's new diet: Has LA stolen New York's crown as the ultimate foodie trend-setter?

Hollywood's new diet trends

Has LA stolen New York's crown as the ultimate foodie trend-setter?
6 best recipe files

6 best recipe files

Get organised like a Bake Off champion and put all your show-stopping recipes in one place
Ashes 2015: Steven Finn goes from being unselectable to simply unplayable

Finn goes from being unselectable to simply unplayable

Middlesex bowler claims Ashes hat-trick of Clarke, Voges and Marsh
Mullah Omar, creator of the Taliban, is dead... for the fourth time

Mullah Omar, creator of the Taliban, is dead... again

I was once told that intelligence services declare their enemies dead to provoke them into popping up their heads and revealing their location, says Robert Fisk
Margaret Attwood on climate change: 'Time is running out for our fragile, Goldilocks planet'

Margaret Atwood on climate change

The author looks back on what she wrote about oil in 2009, and reflects on how the conversation has changed in a mere six years
New Dr Seuss manuscript discovered: What Pet Should I Get? goes on sale this week

New Dr Seuss manuscript discovered

What Pet Should I Get? goes on sale this week
Oculus Rift and the lonely cartoon hedgehog who could become the first ever virtual reality movie star

The cartoon hedgehog leading the way into a whole new reality

Virtual reality is the 'next chapter' of entertainment. Tim Walker gives it a try
Ants have unique ability to switch between individual and collective action, says study

Secrets of ants' teamwork revealed

The insects have an almost unique ability to switch between individual and collective action
Donovan interview: The singer is releasing a greatest hits album to mark his 50th year in folk

Donovan marks his 50th year in folk

The singer tells Nick Duerden about receiving death threats, why the world is 'mentally ill', and how he can write a song about anything, from ecology to crumpets
Let's Race simulator: Ultra-realistic technology recreates thrill of the Formula One circuit

Simulator recreates thrill of F1 circuit

Rory Buckeridge gets behind the wheel and explains how it works