Oldest footprints mark move from land to sea

Footprints in Poland indicate that an animal - possibly resembling a crocodile - came from the sea 395 million years ago

London Zoo counts its animals in

With more than 750 species, London Zoo’s annual count starts with the aardvark and ends with the zebras

Where would you look for new species of trees?

Try the Cheddar Gorge, one of Britain's most studied landscapes

Top scientists share their future predictions

From virtual brains and Matrix-like thought connections to diesel-making bacteria, what the next decade could bring

Dash for wind power leaves UK with £15bn blackhole

'Super Grid' needed before UK's electricity network could deal with the huge peaks associated with wind power

Hubble telescope finds 'undiscovered' galaxies

Space telescope peers further back than before to see baby galaxies that may have formed 500 million years after Big Bang

Science: Waiting for the God particle

Is physics really doomed if we don’t find the elusive Higgs boson

Where would you look for new species of trees?

Try the Cheddar Gorge, one of Britain's most studied landscapes

Am I my twin brother's keeper?

From eugenics to twin studies, there are many ways to pin down the complexities of identity as a London exhibition shows

Demand for 'designer babies' to grow dramatically

Parental demand for the screening of genes will soar and require an ethical debate, a leading geneticist predicts

DNA gives clues, but does it give answers?

Despite huge developments in DNA research, the inherited contribution to major causes of death and ill health remain opaque

Diabetes to be explored in biggest DNA study

The complete genomes of 3,000 people are to be sequenced to find better ways to diagnose and treat the disease

Celebrities brought to book for cod science

The Celebrities and Science Review 2009 highlights outlandish and unfounded claims made by actors and sports stars

Celebrities’ cod science revealed

From Heather MIlls to Robin Van Persie - the worst examples of fame not necessarily bringing wisdom

Data deluge will reboot our brains

The average person gets bombarded with 2.3 words per second, or about 100,000 words a day, according to a new study

Testosterone's reputation largely undeserved

Far from increasing violence and greed, the male hormone can encourage decency and fair play, scientists have found

Mona Lisa's smile may have belied ill health

An Italian professor who has been studying the Old Masters believes the subjects were far from being icons of perfection

Celebrities brought to book for cod science

The Celebrities and Science Review 2009 highlights outlandish and unfounded claims made by actors and sports stars

Two heroin users dead from anthrax-laced drug

Heroin users have been warned over a contaminated batch as two users who died in Glasgow test positive for anthrax

Have-a-go hero regains sight in stem cell trial

Russell Turnbull lost most of the sight in one eye 15 years ago. Now, thanks to British doctors, he can now see again

The Eureka Quiz

Three levels of difficulty and - most importantly - the answers

Glowing walls could kill off the light bulb

A chemical coating powered by solar panels will light our homes in the future, saving energy, money and carbon emissions

Scientists spot clues to mystery of dark matter

Hints of mysterious substance thought to make up quarter of the Universe picked up for first time in disused US mine

'Cuts will kill UK's nuclear research programme'

Scientists say a £40m deficit will prevent the training of technicians required for a new generation of nuclear plants

Mandelson the Protector swats away 'coup'

Lord Mandelson batted away the bid to mount a leadership challenge against Gordon Brown with contempt

'Cuts will kill UK's nuclear research programme'

Scientists say a £40m deficit will prevent the training of technicians required for a new generation of nuclear plants

Britain 'can’t back' Obama's pullout pledge

Rift with US exposed as Defence Secretary says setting date for withdrawal of British troops from Afghanistan impossible

Doctor to argue freedom of speech defence

A heart doctor being sued for criticising a US company’s research says scientists must be free to challenge such work

Why non-scientists are a pain in the arts

Were the Moon landings faked? Yes or no, I for one would never trust the irrational opinion of a mere arts graduate

Hubble telescope finds 'undiscovered' galaxies

Space telescope peers further back than before to see baby galaxies that may have formed 500 million years after Big Bang

Kepler telescope finds five new worlds

Early discoveries give boost to orbiting observatory's mission to track down rocky, Earth-like planets

Scientists discover ‘recent’ Martian lakes

Research indicates that lake beds existed three billion years ago, altering theories of when the planet finally became dry