NAIROBI, Kenya (AP) — What began as a childhood hobby more than six decades ago has led to what might be Africa's largest butterfly collection in a suburb of Kenya's capital. Steve Collins, 74, was ...

Mark Williams was out with his butterfly net in his favorite South African mountain range when a flutter of gray-blue wings sailed by. They were almost as small and nondescript as the other gray-blue ...

The Nature Index tracks primary research articles from 145 natural-science and health-science journals, chosen based on reputation by an independent group of researchers. The Nature Index provides ...

NAIROBI, Kenya (AP) — What began as a childhood hobby more than six decades ago has led to what might be Africa’s largest butterfly collection in a suburb of Kenya’s capital. Steve Collins, 74, was ...