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Scientists have found 40 new genes in our brains that are associated with intelligence, according to a new study in Nature Genetics. The finding doesn't tip the scales in the decades-long debate about whether intelligence is a product of nature or nurture but it will help neuroscientists and others understand and define the biological components of IQ.

How they did it: Geneticists from the Netherlands analyzed intelligence test scores and existing genetic data from 80,000 individuals of European descent. They looked for genetic markers that were consistent across people who performed well on different tests to measure intelligence and found 40 new genes. Variations of the genes influenced IQ by a fraction of a point so they aren't determiners of intelligence but the findings could be used to assess the effectiveness of strategies to boost intellectual development in children.

Go deeper

14 mins ago - Politics & Policy

McConnell drops filibuster demand, paving way for power-sharing deal

Senate Majority Leader Chuck Schumer (R) and Minority Leader Mitch McConnell attend a joint session of Congress. Photo: Olivier Douliery/AFP via Getty Images

Senate Minority Leader Mitch McConnell has abandoned his demand that Democrats state, in writing, that they would not abandon the legislative filibuster.

Between the lines: McConnell was never going to agree to a 50-50 power sharing deal without putting up a fight over keeping the 60-vote threshold. But the minority leader ultimately caved after it became clear that delaying the organizing resolution was no longer feasible.

Scoop: Google won't donate to members of Congress who voted against election results

Sen. Ted Cruz led the group of Republicans who opposed certifying the results. Photo: Stefani Reynolds/Pool/AFP via Getty Images

Google will not make contributions from its political action committee this cycle to any member of Congress who voted against certifying the results of the presidential election, following the deadly Capitol riot.

Why it matters: Several major businesses paused or pulled political donations following the events of Jan. 6, when pro-Trump rioters, riled up by former President Trump, stormed the Capitol on the day it was to certify the election results.

2 hours ago - Politics & Policy

Minority Mitch still setting Senate agenda

Illustration: Aïda Amer/Axios

Chuck Schumer may be majority leader, yet in many ways, Mitch McConnell is still running the Senate show — and his counterpart is about done with it.

Why it matters: McConnell rolled over Democrats unapologetically, and kept tight control over his fellow Republicans, while in the majority. But he's showing equal skill as minority leader, using political jiujitsu to convert a perceived weakness into strength.