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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Humans

Humans were kissing at least 4500 years ago, reveal ancient texts

Many sources claim sexual kissing spread worldwide from South Asia 3500 years ago, but there is evidence it was practised in ancient Mesopotamia and Egypt much earlier than that

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Environment

El Niño climate events cost tropical countries trillions of dollars

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Technology

This house is made from recycled diapers mixed into concrete

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Life

Octopuses may have nightmares about predators attacking them

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Humans

Stone Age blueprints are the oldest architectural plans ever found

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Glass Mountains, situated in the north tip of the Chihuahuan Desert, as seen from Alpine, Texas. - Image ID: R97NY1 (RF)

Environment

US desert grassland collapse is linked to changes in the Pacific Ocean

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Urban red fox (Vulpes vulpes) wandering on top of brick wall spiked with broken glass on very early morning in residential gardens.; Shutterstock ID 1889796793; purchase_order: -; job: -; client: -; other: -

Life

When did animals like foxes first start living alongside people?

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Life

Let science guide horse welfare, not misguided, overemotional protest

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EJMAXP Senior couple Nordic walking on rocky trail in the nature.

Health

We can treat age-related illness without calling ageing a disease

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Life

Comb jellies, not sponges, might be the oldest animal group after all

An argument that has been raging among biologists for over a decade – whether comb jellies or sponges were the first group to split off from the common ancestor of all animals – has a new twist, thanks to an analysis of genetic patterns

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Chemistry

Octopus-inspired ink changes colour when exposed to light

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Health

Scientists discovered why cola and salty snacks taste so good together

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Environment

Breaching 1.5°C of global warming by 2027 is increasingly likely

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Life

Gibbons plan ahead to beat competitors to the best breakfast spots

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