The African spiny mouse has the ability to regrow large patches of skin and hair without scarring. Ashley W. Seifert/Nature hide caption

itoggle caption Ashley W. Seifert/Nature

In October 2010, a tiger walks past a vehicle carrying tourists at Ranthambore National Park in India. India's top court has banned tourism in parts of tiger reserves across the country in an effort to save the endangered big cat. Mustafa Quraishi/AP hide caption

itoggle caption Mustafa Quraishi/AP

An Atlantic salmon leaps while swimming inside a farm pen near Eastport, Maine. Studies show farm-raised fish, like people, benefit from exercise. Robert F. Bukaty/AP hide caption

itoggle caption Robert F. Bukaty/AP

Charlotte, Vt., has a new, old-school strategy to keep cemetery grass cut: Let animals do the work. Kirk Carapezza/Vermont Public Radio hide caption

itoggle caption Kirk Carapezza/Vermont Public Radio

Federally funded chimps at the New Iberia Research Center in Louisiana will retire to either a lab in Texas or a chimp sanctuary in Louisiana. Courtesy of the Humane Society of the United States hide caption

itoggle caption Courtesy of the Humane Society of the United States

"A sculpture like this can take a master carver years to produce. Front and center are the popular Taoist gods Shou, Lu and Fu — symbols of long life, money, and luck. 'We hope — no, we insist — we can continue to protect these skills,' says Wang Shan, secretary-general of the China Arts and Crafts Association." Brent Stirton/National Geographic hide caption

itoggle caption Brent Stirton/National Geographic

The artificial cave built for bats in Tennessee has a human entrance below and a bat entrance above. In the summer, any fungus left by the bats over the winter will be cleaned up. The Nature Conservancy hide caption

itoggle caption The Nature Conservancy

A city worker sells eggs as people line up outside the truck in Mexico City on Aug. 24. The Mexican government is battling an egg shortage that has caused prices to spike in a country with the highest per-capita egg consumption on Earth. Alexandre Meneghini/AP hide caption

itoggle caption Alexandre Meneghini/AP