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Ancient human footprints in Saudi Arabia give glimpse of Arabian ecology 120000 years ago

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Using high resolution paleoecological information obtained from fossilized footprints, a new study presents ~120 thousand-year-old human and animal footprints from an ancient lake bed in northern Arabia. These findings represent the earliest evidence for humans in this part of the world and show that human and animal movements and landscape use were closely linked.

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Ecologists sound alarm on plastic pollution

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Ecologists examining plastic pollution entering oceans, rivers and lakes around the world annually, outline potential impacts of various mitigation strategies over the coming decade. The researchers estimate the scale of human response needed to reduce future emissions and manage what’s already floating around out there and recommend a fundamental shift to a framework based on […]

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A scientific first: How psychedelics bind to key brain cell receptor

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For the first time, scientists solved the high-resolution structure of these compounds when they are actively bound to the 5-HT2A serotonin receptor on the surface of brain cells. This discovery is already leading to the exploration of more precise compounds that could eliminate hallucinations but still have strong therapeutic effects. Psilocybin – the psychedelic compound […]

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Humans develop more slowly than mice because our chemistry is different

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Scientists have found that the ‘segmentation clock’ — a genetic network that governs the body pattern formation of embryos — progresses more slowly in humans than in mice because the biochemical reactions are slower in human cells. The differences in the speeds of biochemical reactions may underlie differences between species in the tempo of development.