The Arctic Ocean is more than just icy waters, it harbors vibrant ecosystems — but it also harbors valuable oil, gas, and ...
Antarctica’s ice caps have been shaping the ocean for millions of years, but recent discoveries reveal icebergs existed even before the continent’s major freeze. It’s not unusual to see icebergs break ...
It has long been recognized that terrestrial floras underwent major and long-lasting changes during the Permian and Triassic, some of which have been attributed to the end-Permian mass extinction.