Intermittent claudication can be due to temporary artery narrowing due to vasospasm (spasm of the artery), permanent artery narrowing due to atherosclerosis, or complete occlusion (closure) of an artery to the leg. The condition is quite common, more so in men than women.
The GalÃ¡pagos tortoises are native to seven of the GalÃ¡pagos Islands, a volcanic archipelago about 1,000 km (620 mi) west of the Ecuadorian mainland. With lifespans in the wild of over 100 years, it is one of the longest-lived vertebrates. A captive individual lived at least 170 years. Spanish explorers, who discovered the islands in the 16th century, named them after the Spanish galÃ¡pago, meaning tortoise. Shell size and shape vary between populations.
New Giant Tortoise Species Found on GalÃ¡pagos Islands. The reptiles evaded detection as a distinct species for over a hundred years. View Images. The two populations of tortoises on Santa Cruz island are separated by a little over 12 miles (20 kilometers), and look the sameâbut theyâve been found to be different species. A new species of tortoise has been hiding in plain sight in the GalÃ¡pagos. Now it has a name. There are two populations of giant tortoises on the island of Santa Cruz: The ones that live on the islandâs east side are known as the Cerro Fatal tortoises, and the ones in the west and southwest are called the Reserva tortoises.