Over the weekend, the IMAX documentary Island of Lemurs: Madagascar opened in theaters. Narrated by Morgan Freeman, it is an attempt to raise awareness about efforts to conserve what researchers call the most threatened mammal on Earth. Here's a glimpse at other threatened and endangered animals that have made headlines recently.

George Pimentel—WireImage/Getty Images Lemurs of Madagascar Between poaching and habitat loss due to illegal logging, some researchers now say the lemurs of Madagascar are "the most threatened mammal group on Earth," according to a recent article in the journal Science . In addition to national conservation efforts, the international research team concluded that increased ecotourism — tourists who pay to see threatened species in their natural habitats — will benefit both the lemurs and the island's poor rural communities. These newly minted pop culture icons can now be seen on the silver screen in Island of Lemurs: Madagascar , an IMAX documentary narrated by Morgan Freeman.

Virginie Lefour—AFP/Getty Images Giant Panda Fewer than 1,600 giant pandas are left in the world, making it the rarest bear species. During a recent trip to China, First Lady Michelle Obama visited Chengdu Research Base of Giant Panda Breeding, feeding five approximately 18-month-old pandas by holding out sticks with apples at the end. In addition to the center's panda cams , you can also see these giant cuddly creatures on cams run by the National Zoo and the San Diego Zoo .

Alexandra Beier—Getty Images Polar Bear Polar bears are considered a vulnerable species because their sea ice habitat, which they use to reach seals, their prey, is melting away , forcing them to swim longer to find places to hunt — a phenomenon many scientists and conservationists attribute to climate change. Now you can see them without leaving your home, thanks to Google Street View, which filmed polar bears in Cape Churchill and Wapusk National Park in northern Manitoba in conjunction with Polar Bear International.

Texas Parks and Wildlife Department / Jon McRoberts / AP Lesser Prairie Chicken Starting April 11, birders will flock to the annual Central Wisconsin Prairie Chicken Festival to see the feathered animal's elaborate mating dance . On March 27, the Obama administration updated the lesser prairie chicken's status to "threatened," a step below "endangered," after the species' population hit record low numbers last year because its habitat has been diminished due to ranching, oil and gas drilling and the construction of wind turbines and power lines. Oklahoma, North Dakota and Kansas have filed a lawsuit challenging the decision, arguing that it will be detrimental to oil, gas and wind-energy businesses, dealing a blow to the states' economies.

Jonas Van de Voorde West African Lion In January 2014, researchers found that lions in West Africa are nearly extinct, with only about 400 left altogether and about half at breeding age, according to Panthera, a non-profit that spent six years tracking them in 17 West African countries. As Philipp Henschel, co-author of the report, told the BBC , “we are talking about some of the poorest counties in the world — many governments have bigger problems than protecting lions." Some of the last of these lions can be seen at Pendjari National Park-Biosphere Reserve in Benin.

Mohd Rasfan—AFP/Getty Images Pygmy Elephant Found on the northeastern tip of Borneo in the Pacific Ocean, southeast of the Malay peninsula, the endangered pygmy elephants are the "world's smallest known sub-species of elephant," according to the World Wildlife Fund. The biggest threats to their habitat are logging and the construction of palm oil plantations, which has led to confrontations between humans and elephants. This conflict was widely speculated to be the cause of 14 pygmy elephants deaths, likely caused by poisoning, that made headlines in January 2013. People who want to see them can " adopt " one through the World Wildlife Fund, which will send them photos.

Specialist Stock/Barcroft Medi/Getty Images Galápagos Penguin The Galápagos penguin has been listed as endangered partly because its survival is threatened by El Niño events, in which the water becomes too warm and causes food shortages. Found in the Galápagos Islands off Ecuador, it is also the only species of penguin found on the equator.

Scott Olson—Getty Images Snow Leopard Snow leopards in the mountains of Central Asia have been recognized as an endangered species since 1972 because of poaching and the illegal trading of fur and body parts, which are used in traditional Asian medicine. Fun fact: their white and gray fur helps them blend into their natural surroundings, and they have extra-large paws to prevent them from sinking into the snow, according to the Snow Leopard Trust .