SCIENCE

There are less than 4,000 tigers left in the wild and their habitat is at risk from bad infrastructure planning.

Dogs show signs of episodic memories as they can recall human actions even without expecting to be tested on them.

Scientists say extreme events are partly due to climate change but had different causes.

Much of La Paz receives water just three days a week, from 6am to 9am, because reservoirs serving the city are nearly dry.

Vessel dates to Middle Bronze Age and was found alongside daggers, an axe head and arrowheads.

A vast, shallow repository of ice has been discovered in a convenient spot for landing and living on the Red Planet.

Trump softens campaign rhetoric and says he has "an open mind" on Paris Agreement.

The inscriptions tell the story of how life flourished in the desert 2,000 years ago.

Females appear to evolve increased cognitive ability so they can avoid male mating attempts.

A strong emotional response to baby also positively correlated with decreased risks of bad behaviour in kids.

Hurricane season for the Atlantic 'ends' on 30 November, with 15 storms named in 2016.

The move comes after similar plans were announced by France, the UK and other European countries.

Torrential downpours and winds of up to 80mph caused misery in parts of the country.

The environment around the glass might be more important than what's in it.

Women who are seen as more 'agreeable' tend to receive lower salaries than what they deserve.

King Emere Godwin Bebe Okpabi tells High Court 'my people are dying from contaminated water'.

The Bok globule is a small cloud that gives birth to stars, and is most distant of its kind to have been discovered.

New control methods must be used to stop feral cats demolishing hundreds of endangered species in Australia.

Scientists find the mineral brucite can store and transport water at far greater depths than thought.

Previous models overestimated how much record high temperatures would be affected by warming climate.

Testing DNA from the sharks' environment is less invasive than traditional tissue sampling and could aid conservation efforts.

We have already betrayed our existence to any aliens listening out for us.

Signs of sex-selection and feeding by humans suggest turkey domestication from 1200AD.

You can help to choose a winner of a world-renowned photography competition by voting in the Wildlife Photographer of the Year People's Choice Award.

First signs of thundersnow – an unusual weather storm phenomenon where snow falls instead of rain.

Climate deniers have been on the sidelines for years. What will happen now they're in charge?

There are fears that president-elect Donald Trump could overturn the decision as he favours offshore drilling.

Science is advancing rapidly, so we need to address the long-term implications of altering our genetic makeup.

Plastination is when all the body's liquids are removed and then replaced with plastic polymers.