The present theory offers a unified solution to three closely related evolutionary problems. (1) Why does an evolving population explore only a small fraction of the accessible pathways in genotype ...

Two months later, Gould began to experience a strange cascade of symptoms. His ankles swelled to the width of his calves. The right side of his face became so bloated that he could not open his eye.

In a recent scientific study, Philippine Eagles inhabiting the Greater Mindanao Faunal Region (Mindanao, Samar, Leyte) show little genetic variation, confirming that the country’s national bird is ...