A tiny tropical flower is challenging a longstanding model for plant evolution. According to researchers at the Field Museum ...

An ancient ancestor of spiders and relatives doubled its genome about 400 million years ago, setting the stage for the ...

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...

The diversity of water strider species apparently developed as early as the Cretaceous period, much earlier than previously ...