Le crâne de Selam, Australopithecus afarensis.
Le cerveau se développait-il aussi rapidement pendant la grossesse chez nos ancêtres que chez l’espèce humaine ? De nouveaux indices fossiles et in utero.
Any hominid fossil find with molar teeth can be plugged into a new equation that reveals its species’ prenatal growth rate.
Gil Cohen-Magen/AFP via Getty Images
Using a new equation based on today’s primates, scientists can take a few molar teeth from an extinct fossil species and reconstruct exactly how fast their offspring grew during gestation.
Cette structure de rochers et sédiments, notamment leur inclinaison, permet de mieux comprendre l’histoire du delta Jezero, sur la planète Mars. Les contrastes ont été amplifiés.
La confirmation de l’existence passée d’un lac dans le cratère Jezero est le premier résultat scientifique majeur de la mission du rover Perseverance.
Perseverance took a selfie next to its biggest accomplishment yet – the two small drill holes where the rover took samples of Martian rocks.
Perseverance and its helicopter sidekick, Ingenuity, have been on Mars for nearly nine months. The duo have taken rock samples, performed first flights and taken images of the delta in Jezero Crater.
Women who perceive their male colleagues as allies are more likely to feel included in a workplace.
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While women felt more included when they perceived male colleagues as allies, men who saw themselves that way reported more personal growth as a result.
Kamala Harris speaking via a screen to demonstrators at the protest against racism and police brutality on Aug. 28, 2020, in Washington, D.C.
Roberto Schmidt/AFP via Getty Images)
Black and Asian American communities have been portrayed as in opposition to each other. Multiracial Kamala Harris, both Asian American and Black, represents the potential for coalition building.
In a clean room at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., engineers observed the first driving test for the Mars rover, Perseverance. Perseverance will search for signs of past microbial life, characterize Mars’ climate and geology, and collect samples for a future return to Earth.
This summer, NASA’s Mars Perseverance rover is taking the next giant leap in our search for signs of life beyond Earth.
President Obama sought to make the United States the most college-educated nation in the world by 2020.
Efforts to get more Americans to earn a college degree steal attention from what makes up a college education, a historian of education argues.