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New research helps predict which human embryos are most likely to succeed
When assisting conception with in vitro fertilisation, embryologists need to achieve a delicate balance: transfer too many healthy embryos, and a woman faces the potential danger of twins or triplets; transfer too few, and a woman risks having to repeat the process or not having a child at all. Human fertilisation, as it turns out, is an uncertain process both inside and outside of fertility clinics. This video from KQED San Francisco’s science documentary series Deep Look shows how researchers are getting closer to making in vitro fertilisation a more precise science.
Producer: Gabriela Quirós
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Biology
‘Save the parasites’ may not be a popular rallying cry – but it could be a vital one
11 minutes
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Metaphysics
What do past, present and future mean to a philosopher of time?
55 minutes
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Computing and artificial intelligence
Why large language models are mysterious – even to their creators
8 minutes
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Evolution
The many ways a lizard tongue sticks, grasps, pinches and plops – in slo-mo
6 minutes
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Biology
Starlings swoosh like brushstrokes across the sky in this dazzling short
3 minutes
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Engineering
From simple motors to levitating trains – how design shapes innovation
24 minutes
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Ecology and environmental sciences
The tree frog die-off that sparked a global mystery – and revealed a dark truth
15 minutes
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Film and visual culture
Our world has very different contours when a millimetre is blown up to a full screen
8 minutes
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Astronomy
The remarkable innovations inspired by our need to know the night sky
5 minutes