Animal life began in aquatic environments more than 600 million years ago. Around 500 million years ago, during the Cambrian ...
Quick Take The discovery of the sea sponge order Vilesida and its unique sterols supports the hypothesis that animals may ...
Researchers suggest that evolution may speed up dramatically during certain periods, challenging a long-held theory and helping explain a puzzling 30-million-year gap between genetic estimates and the ...
More than 700 fossils from China’s Jiangchuan Biota reveal that complex animals had origins millions of years earlier than ...
Scientists have discovered fossils in China that reveal a crucial transition from simple to complex life on Earth.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results