The Great Barrier Reef is a very special place! It is not one continuous reef, but made up of over 2900 reefs and 900 islands. It is the largest reef structure and marine park in the world.he Great Barrier Reef is a very special place! It is not one continuous reef, but made up of over 2900 reefs and 900 islands. It is the largest reef structure and marine park in the world.
A meningioma is a tumor that arises from the meninges â the membranes that surround your brain and spinal cord. Most meningiomas are noncancerous (benign), though rarely a meningioma may be cancerous (malignant).Some meningiomas are classified as atypical, meaning they're neither benign nor malignant but, rather, something in between.ost meningiomas are noncancerous (benign), though rarely a meningioma may be cancerous (malignant). Some meningiomas are classified as atypical, meaning they're neither benign nor malignant but, rather, something in between.
A brain tumor is an abnormal growth of tissue in the brain. If the tumor originates in the brain, it is called a primary brain tumor. Primary brain tumors can be benign or malignant. Benign brain tumors. Benign brain tumors are not cancerous.They grow slowly, have distinct borders and rarely spread. Benign tumors can still be dangerous, though. They can damage and compress normal parts of the brain, causing severe dysfunction.enign brain tumors are not cancerous. They grow slowly, have distinct borders and rarely spread. Benign tumors can still be dangerous, though. They can damage and compress normal parts of the brain, causing severe dysfunction.