Sloth mystery solved: How moths and algae shape this unusual creature's toilet habits

Why sloths descend from the safety of the trees once a week to go to the toilet has baffled scientists - but one specialist thinks he has the answer

Close-up image of a conker and single horse chestnut leaf, which is showing signs of leaf miner damage (Getty Creative)

UK conker trees under threat from alien invading moths as scientists say Britain’s wasps are losing the insect war

Experts say there simply aren’t enough wasps to keep the horse chestnut-munching moths at bay

The chalkhill blue butterfly population has exploded on many of Britain's downs in July

A good year for nature in Britain, despite the cold: After frostiest March for 50 years, summer gave rise to an explosion in wildlife

'We had a wonderful July,' says National Trust specialist. 'The way nature fought back was miraculous; it went into overdrive'

A Crimson Speckled moth

On a wing and a heatwave: Exotic butterflies and moths from the continent colonising UK

Exotic butterflies and moths from the Continent have begun to colonise Britain following the hot summer, the Butterfly Conservation charity reports.

Kingsway Dalston

Mown down: The wildlife toll on UK's roadsides

Our obsession with neatness is harming plants, bees and butterflies

10% of British wildlife at risk of extinction as species show massive decline

Comprehensive study reveals hedgehogs, turtle doves and red squirrels among species seeing biggest falls

Paperback review: The Art of Leaving, By Anna Stothard

Eva Elliott no sooner starts a relationship than she is wondering how to get out of it, and worries that there is something odd about her tendency "to think so often about endings". That's until she meets the dashing barrister Luke, who would seem to offer her lasting happiness. But when an old friend of his, the glamorous Grace, arrives on the scene, Eva feels threatened – and her feet begin to itch once more.

Liber Nauticus is 7-2 for the Oaks despite a laboured win at York

Nauticus finds it far from plain sailing in Investec Oaks trial

If this was supposed to be the preliminary sketch for an Epsom masterpiece, then for now Liber Nauticus remains closer to an oil tanker than a dashing ocean clipper. Nonetheless she finds herself disputing favouritism for the Investec Oaks, bookmakers having taken an indulgent view of the heavy weather she made of her trial here.

Review: Asunder, By Chloe Aridjis (Chatto & Windus)

Cracks appear down at the gallery

The greater wax moth can hear sounds that are 100 times higher than the highest human voice

The moth that made mobile phone companies sit up and listen: Insect with sharpest hearing in the world could revolutionise technology

Greater wax moth is capable of hearing sounds 100 times higher than the whiniest human voice

Monarch butterflies are also believed to use landmarks and scent to find their way while migrating

Mapless monarch butterflies migrate using 'internal compass'

The North American monarch butterfly’s amazing migration, travelling thousands of miles each year from its wintering grounds in Mexico to as far north as the Great Lakes of Canada and back, is done without any internal maps, a study has found.

The Google doodle marks the 366th birthday of Maria Sibylla Merians

Google doodle celebrates life of artist and naturalist Maria Sibylla Merian

The 366th anniversary of the birth of German artist and naturalist Maria Sibylla Merian is celebrated in Google’s latest doodle.

This exotic spider was found in a household fridge in Glenrothes, Scotland

Exotic spider which may have travelled from India found in a fridge in Scotland

It has since been identified as from the wolf spider family

The Monarch butterfly

On a wing and without a prayer – the decline of the monarch butterfly

Out of America: More GM crops mean more herbicides – which destroy the food the insects need for their epic migration

Review: The Red Moth, By Sam Eastland

The saviour of the art of war

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Joel Edgerton, John Turturro and Christian Bale in Exodus: Gods and Kings
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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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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
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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