Trade encourages specialisation, which brings prosperity; global capital markets, for all their problems, allocate money more efficiently than local ones; economic co-operation encourages confidence and enhances security. Yet despite its obvious benefits, the globalised economy is under threat.
RA (the most common disease cause) and Paget disease of the cervical spine can cause atlantoaxial dislocation or subluxation, basilar invagination, or platybasia. Metastatic tumors that affect bone can cause atlantoaxial dislocation or subluxation.
Dive tourism involving manta rays is a growing industry, and can potentially give the giant manta ray more economic value than the short-term profits from fishing. However, the industry needs to be appropriately managed to prevent harm to the giant manta ray or its habitat and to ensure that it remains sustainable.