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Marijuana joint in a hand

Health

Quick saliva test can reveal cannabis use over the past 12 hours

A sample of saliva placed on a strip and analysed with a smartphone camera can reveal if a person has ingested cannabis in the past 12 hours

News

MRI scan of human head

Health

Women are less likely to get pregnant for two years after a concussion

News

Woman taking sample for DNA test indoors, closeup; Shutterstock ID 1875765013; purchase_order: -; job: -; client: -; other: -

Health

DNA markers reveal if you shared a womb with twin that didn't survive

News

Woman and child wearing colorful pair of woolly socks warming cold feet in front of heating radiator in winter time. Electric or gas heater at home. Part of body, selective focus.

Environment

Blame fossil fuels, not renewables, for the UK's winter energy crisis

Analysis

Human papillomavirus

Health

Having HPV while pregnant linked to increased risk of premature birth

News

A mother performs lunges with a child on her chest in a baby carrier

Health

It really is difficult to get fit after giving birth, study reveals

News

A Black Howler monkey

Life

Howler monkeys navigate using adaptable mental maps, just like humans

News

mud ring made by dolphin

Life

Dolphins spotted trapping fish in mud rings in the Caribbean

News

false killer whale

Technology

Secret underwater messages can be hidden in whale and dolphin chatter

News

Blurred picture of dead albino chimp

Life

First known wild chimpanzee with albinism was killed by other chimps

A baby chimpanzee was born with white fur and no pigmentation, the first time such an animal has been found in the wild. But the chimp was born into a community with high rates of infanticide, and killed within weeks

News

Video

Puzzle-solving great apes: The shared abilities underpinning language

Video

Health

Insight into early embryos could explain why some pregnancies fail

News

Health

Should we start testing drugs and vaccines in people who are pregnant?

Insight

Environment

How courts and investors are forcing big oil companies to clean up

Analysis