Darwin made an error about sexual selection. "Analyzing 462 different species of reptiles, mammals and birds, our study found a tight association between sexual size dimorphism and sex ratios, vindicating Darwin's conjectures…But the trend was the opposite to the one Darwin predicted with his limited evidence. It turns out the most intense sexual selection – indicated by larger males relative to females – occurred in species where there were plenty of females for males to choose from, rather than a scarcity of females as Darwin suggested.”
What do you want to dream about? Soon, you may be able to choose. “‘As we’re falling asleep, we tend to replay the events from the day,’” says Robert Stickgold, a sleep researcher at Harvard who worked on the Dormio project. ‘That sleep-onset period is where we identify [our brain’s] chores for the night.’ With the right psychological nudges, we may be able to tag these concepts — say, learning a piece of music or solving a technological problem — for processing during the night."
Lobster diver swallowed whole by humpback whale lives to tell the tale. “He thought he had been attacked by a shark, common in area waters, but then realized he could not feel any teeth and he wasn’t in any pain. ‘Then I realized, oh my God, I’m in a whale’s mouth…and he’s trying to swallow me,’ he said. ‘And I thought to myself OK, this is it – I’m finally – I’m gonna die.’”
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