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HIV and AIDS

A synthetic mouse embryo (left) and a natural mouse embryo (right) show comparable brain and heart formation

Health

Synthetic reproductive cells will help us understand fertility in 2023

Laboratory-grown sperm, placentas and embryos in animals will help us gauge why some pregnancies don't reach full term, but whether these procedures could one day be safe or even ethical in humans is unclear

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Protesters hold placards during a

Earth

2022: The year of rolling polycrisis, but with a few glimmers of hope

Leader

An electron micrograph of an HIV virus particle (red/yellow) budding from the plasma membrane of an infected T cell (blue), which make up part of the immune system

Health

Vaccine prompts HIV antibodies in 97 per cent of people in small study

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A small pile of cocaine

Chemistry

Genetically modified tobacco plant produces cocaine in its leaves

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A baby in a neonatal intensive care unit is held by its mother

Health

Immediate skin-to-skin contact advised for premature newborns by WHO

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2K6KYM8 Protesters hold an

Environment

Dismissing environmentalists with an 'anti-growth' label is wrong

Comment

The mucus in cows' salivary glands may have anti-viral properties

Health

Personal lubricant made from cow mucus may protect against HIV

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US pardons people convicted for marijuana possession under federal law

Society

US pardons people convicted for marijuana possession under federal law

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How hacking your metabolism can help you burn fat and prevent disease

Health

How hacking your metabolism can help you burn fat and prevent disease

Features

Fewer than expected boys were born in England and Wales three months after lockdown was introduced

Health

Fewer boys born in England and Wales in early stage of the pandemic

The covid-19 pandemic has been linked to a decline in the proportion of male babies being born, in line with previous findings that fewer boys are born after population-wide stressful events

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Humans

Russia's Nord Stream gas pipelines to Europe suffer mysterious leaks

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Environment

Decarbonising the shipping industry will cost more than $1 trillion

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Life

Web of blood vessels helps protect whales’ brains while swimming

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Health

Umbilical cord 'milking' cuts brain injury risk for babies born limp

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