Jellyfish are much smarter than previously thought, reveals new research – despite only having 1,000 nerve cells and no centralised brain. The study showed that poisonous Caribbean box jellyfish ...

Even without a central brain, jellyfish can learn from past experiences ... light on the evolutionary roots of learning and memory. No bigger than a fingernail, these seemingly simple jellies ...

They've often been thought of as very simple organisms - jellyfish are made up of around 98% water and have no bones, no brain and no heart. However a new study by scientists from the University ...

New research shows for the first time that despite lacking a central brain, jellyfish can still learn from their environment and change their ... The “bell” – the main, umbrella-like section of a ...

Jellyfish have been around on earth for ... and to have fairly simple nervous systems and no centralized brain. And with prevailing opinion being that more advanced nervous systems equate to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Caribbean box ...

Astonishingly, the ocean teems with brainless creatures that thrive using instinct and nerve networks. Jellyfish, sea sponges ...

Caribbean box jellyfish are barely a centimetre long and have no brain. But these gelatinous, fingernail-sized creatures are capable of learning from visual cues to avoid swimming into obstacles ...