But cleverness is hard to define - animals have to contend with different challenges in life and what might be clever or ...

Recent explorations into the world of brainless animals have unveiled surprising capabilities that challenge our traditional views of cognition. Creatures like slime molds, jellyfish, and even plants ...

For decades, this question has bewildered biologists. Now, by studying Placozoa, scientists at Stanford University have ...

We take a closer look at brains, how animals use them, and how some evolved to lose them. We're going to take a closer look at brains, how animals use them, and how some animals have even evolved to ...

Some animals lack brains yet perform astonishingly complex actions. Animals such as Jellyfish, sea urchins and starfish do not have brains, but does that mean they do not think. They have some ...

Sleep is one of biology's biggest mysteries. Every species with a nervous system has some form of resting period, and so one theory for why animals sleep is that it helps maintain the brain — allowing ...

Creatures like sea stars, jellyfish, sea urchins and sea anemones don't have brains, yet they can capture prey, sense danger and react to their surroundings. So does that mean brainless animals can ...

For years, a pair of scientists have studied how a simple multicellular animal called Trichoplax coordinates its complex behavior without neurons or muscles. Their work shows that mechanical ...