Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...

A backward question mark shape on the creature's back reveals early animal evolutionary history. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Here's why Dickinsonia challenges our previously held ...

Animals living about 500 million years ago spent time on mudflats that were periodically exposed to the air. The finding suggests that some of the earliest animals were able to survive outside of ...

Emma Hammarlund receives funding from the European Research Council Horizon 2020. Imagine a world where the oxygen you need changes dramatically between day and night. Your world shifts from being ...

For many people, the love that carried them through childhood didn’t come from the adults who were supposed to soothe, guide, and protect them. It came padded on four legs, wrapped in fur, breath, or ...