The forebrain is responsible for processing sensory information, learning, and memory. The midbrain controls movement and balance. The hindbrain controls basic functions such as breathing, heart rate, and digestion.
Sharks also have a unique structure called the choroid plexus. This is a network of blood vessels that helps to supply nutrients and oxygen to the brain. The choroid plexus is also involved in the production of cerebrospinal fluid, which helps to protect the brain and spinal cord.
Overall, the shark brain is a complex and well-developed structure that allows these predators to survive in their challenging environment.
Here are some additional details about the shark brain:
* Sharks have a very acute sense of smell. Their olfactory bulbs, which are responsible for processing smells, are much larger than those of other vertebrates.
* Sharks also have a good sense of hearing. They can detect sounds as low as 20 Hz and as high as 1,000 Hz.
* Sharks have a strong sense of electroreception. They can detect electrical fields as weak as 5 nanovolts. This ability helps them to find prey and navigate in their environment.
* Sharks learn by association. They can associate certain stimuli with rewards or punishments and adjust their behavior accordingly.
* Sharks have a limited capacity for long-term memory. They can remember things for up to a few months.
The shark brain is a fascinating organ that allows these predators to thrive in their challenging environment.