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
British Birds (magazine) possible to bind 19 into one volume. In 2007 a DVD-ROM disk containing the first 100 years' worth of content (Vols 1-100) was released in conjunction with BirdGuides Ltd. Subsequent volumes are available as paid-for updates. In 2010, the magazine launched a blog, Facebook group and a Twitter account. From October 2011, the magazine's first 100 years' of back issues are available on-line, free. More recent issues are available to subscribers to the print edition. British Birds (magazine) British Birds is a monthly ornithology magazine that was established in 1907. It is now published by BB 2000 Ltd, which is