Worldwide, too little iodine in the diet is the most common cause of hypothyroidism. In countries with enough iodine in the diet, the most common cause of hypothyroidism is the autoimmune condition Hashimoto's thyroiditis.
The pronghorn is the second fastest land mammal in the world, after the cheetah. It can attain speeds of over 53 miles (86 kilometers) per hour. Size relative to a 6-ft (2-m) man: Fleet-footed pronghorns are among the speediest animals in North America. They can run at more than 53 miles (86 kilometers) an hour, leaving pursuing coyotes and bobcats in the dust.
Pronghorn once existed throughout the entire central valley of California. Now they are mostly found in northeastern California. Pronghorn Management Program. The Department has made efforts to re-establish herds in central and southern California. The Pronghorn Management Program's objectives are to maintain healthy herds, provide a variety of recreational activities and to minimize conflicts with humans. If you have questions about the pronghorn program, email Joe.Hobbs@wildlife.ca.gov. Tooth Age Data