While animals may act similarly, the brain patterns they use to accomplish these identical behaviors may vastly differ, even when the animals have closely related brains, researchers from Georgia State University have discovered. This finding challenges basic ideas about the relationship between neurology and behavior. The scientists have not yet unraveled the cause for this, but this research shows that key animal behaviors can survive evolution processes that affect the brain.
The studies focused on two different species of nudibranch, gastropod mollusks similar to sea slugs that exist in many shapes and colors around the world. The team studied two species: the lion's mane nudibranch and the giant nudibranch. Both species swim in the same way — by flattening their bodies and then flexing them from side to side.