There exists a unique group of animals that defy this conventional understanding. These creatures have no physical brain as we know it, but they still... Use precise geolocation data and actively ...

Scientists home in on the brain’s evolutionary origins by sorting out the animals without brains. Sponges have no neurons, so they are easy to discount, and while the more sophisticated jellyfish and ...

It's not unusual for animals like bears to build their body mass ... the poor ol' Eurasian common shrew (Sorex araneus) has no desire to waste precious months catching Zs beneath the snow drifts.