Northern sportive lemur have large bacteria-filled ceca, which helps them to digest plant matter such as cellulose and break it down into sugars and starches. The northern sportive lemur is preyed on by the native Malagasy tree boa, which hunts the lemurs while they are sleeping in tree holes. Large birds of prey, Falconiformes and Strigiformes, are also natural predators of the lemurs. Along with these ecological threats, the arboreal lemur species are also highly threatened by human charcoal production, which still continues to remove the only remaining forest habitat of the lemurs, greatly restricting their range. "L. septentrionalis" is also illegally hunted
Angry Birds Seasons birds and the pigs unless they are inside them. On December 1, Winter Wonderham was released and was the 3rd Christmas episode in the series. Like the other Christmas episodes, it is set up as an advent calendar. It introduced slippery blue ice, that makes wood, ice, stone, birds and pigs slip on contact. Season 2013 began in May 2013, when Abra-Ca-Bacon based on World Circus Day was released; it has a magician theme and features magic portals, which can teleport materials, birds, or pigs from one portal to another. In December 2013 Arctic Eggspedition was released, the 4th Christmas