Fallecido de accidente de tráfico con solo 24 años, Kiptum creció en un entorno en el que el puro compromiso y las carreras de larga distancia han transformado a otros niños descalzos, pastores de ganado, en superestrellas internacionales.
Kelvin Kiptum after setting a world record, running a marathon in 2 hours 35 seconds in Chicago, 2023.
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Le Nigeria est en tête du classement des quatre équipes africaines. Deux autres font leur première apparition à la Coupe du Monde, tandis qu'un nuage sombre plane au-dessus de l'Afrique du Sud.
Barbra Banda (front right) and her Zambian teammates celebrate a friendly win over Germany.
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Nigeria leads in the rankings of the four African teams. Two others are making debut World Cup appearances and there’s a storm cloud over South Africa.
Bottlenose dolphins are extremely social animals that communicate constantly.
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Using urine and signature whistles from other dolphins, a team of scientists has shown that dolphins use signature whistles like names and hold mental representations of other dolphins in their minds.
Coal was the dominant fuel for U.S. power plants until 2016. This PacifiCorp power plant in Utah still uses it.
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Every expert we asked talked about the importance of letting children take risks and explore in nature. But they also advised parents to supervise and set limits.
Simply being exposed to nature can help children better cope with stress.
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Exposure to nature plays a positive role in brain development by providing children with opportunities to take risks, discover new things, and be creative.