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Why Primates Show Same-Sex Behaviors Humans aren’t alone in exploring the spectrum of sexual behavior. A growing body of research documents same-sex sexual activity across…
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Background: Who Is At the Root of the Animal Tree? The question of which lineage marks the origin of animals has long tugged at evolutionary…
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Global Insight: Similar warnings across continents A multinational team of researchers has found that more than 20 bird species across four continents announce the presence…
