Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans?

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This blog post addresses behavior across all animal species. It considers what we can learn about behavior when we do not limit our study to just humans. Studying nonhuman animal behaviors is ...

The truth: Dogs don’t see color the way humans do, but they don’t live in a black-and-white world either. Dogs have two types of color receptors (called cones) in their eyes—compared to humans’ ...