movement
8 questions tagged movement — spanning every one of the seven Ws.
Why do crabs walk sideways?
Most crabs walk sideways because their legs bend outward at the joints, so moving to the side is the fastest and most efficient direction.
What is a gliding mammal?
A gliding mammal is a mammal that can move through the air from tree to tree without powered flight. Flying squirrels and colugos are well-known examples.
What is a kangaroo hop?
A kangaroo hop is the bounding gait used by kangaroos and some other marsupials for efficient travel. Their long hind legs and tail make this movement highly effective.
How does the brain control voluntary movement?
Voluntary movement starts in motor areas of the brain and travels through the spinal cord to muscles. The motor cortex plans the action, while the cerebellum and basal ganglia help refine it.
Why do penguins walk upright and waddle?
Penguins’ bodies are built for swimming, not running, so their short legs and centered balance produce a waddling walk. The posture helps them keep stability on ice and rocks.
Why do fleas jump so far relative to their size?
Fleas use elastic protein structures in their legs to store and release energy like tiny springs. That allows them to leap distances many times their body length.
Where is the motor cortex located in the brain?
The motor cortex is in the frontal lobe, mainly along the precentral gyrus just in front of the central sulcus. It controls voluntary movement.
How do squids jet through the water so fast?
Squids move by taking in water and forcing it out through a funnel called a siphon. The jet-like thrust can propel them quickly in short bursts.