Global landmarks go dark for Earth Hour

The UN headquarters in New York, the pyramids of Egypt and Rio's Christ the Redeemer statue were among top world monuments plunged into darkness for an hour Saturday to put the spotlight on climate change and its impact on ...

Mount Kilimanjaro: Ecosystems in global change

2019 marks the 250th anniversary of Alexander von Humboldt. He was one of the first naturalists to document the distribution and adaptation of species on tropical mountains in the 19th century. Humboldt also observed that ...

Human impacts erode behavioral diversity in chimpanzees

Compared to other animals, chimpanzees show tremendous variation across groups in their behavior—from the types of tools they use in their feeding behavior to the specific gestures they use in communication. Research in ...

World seeing 'catastrophic collapse' of insects: study

Nearly half of all insect species worldwide are in rapid decline and a third could disappear altogether, according to a study warning of dire consequences for crop pollination and natural food chains.

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