Puzzle feeders offer our sea otters a fun, full-body workout, from brain to paws! Watch as Mari pushes a food-filled toy from one end of the maze to the other. | Shedd Aquarium

510K views · 5.4K reactions | In this video, let’s have a look at the most detailed brain map ever created — a stunning visual representation of a mouse brain's connectome. With over 84,000 neurons, half a billion synapses, and 5.4 kilometers of neural wiring, this map gives us an unprecedented glimpse into the complex structure and function of the brain. | The Brain Maze | Facebook