Sharks might be the all time bullet-dodging champions. They’ve been around for about 450 million years, longer than trees, longer than the rings of Saturn, and longer than most of the other life on ...
About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, ...
Discover how the first mass extinction put jawed fishes on the map, species that would later come to dominate animal life on ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Stewart Edie, Smithsonian Institution (THE CONVERSATION) About 66 million years ago – ...
Humans have been shaping their environment since time immemorial. From cities to farms to highways, our impact has grown so large that we've pushed planetary boundaries, fueling concerns about climate ...
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