The mating display of the male bird of paradise owes its optical extravagance to a background so black it is the envy of telescope and solar panel engineers, according to a new study published Jan. 9 in the journal Nature Communications.
Their velvety...
Optimism about the future of others is widespread even in the face of bad news — at least if the person is someone we care about. However, we can feel this optimism even for strangers if they possess a few admirable attributes, a new study by Yale and...
