បញ្ចុះតម្លៃ ៤៥% សំរាប់ថ្ងៃនេះ
Scientists have found that Earth’s worst mass extinction event 252 million years ago happened rapidly in the oceans, while it panned out over a much longer, drawn-out period, on land.. According to research published in the journal PNAS, the end-Permian extinction event saw a vast majority of animal species go extinct, and the planet entered the early days of the Age of Dinosaurs when the ...
បង្ហាញលេខកូដគូប៉ុង