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
Dawn chorus (birds) bellbird and the tui are two of the birds that would have formed part of the dawn chorus since they have a vocal and melodious call. In the UK the dawn chorus may begin as early as 3am in early summer. The most often heard species of birds are, in order of them beginning to sing: Several primate species vocalise early in the morning as an audible territorial display. These include the lesula ("Cercopithecus lomamiensis"), the black howler ("Alouatta caraya") (which can be heard 5 km away) and the mantled guereza ("Colobus guereza"). Dawn chorus (birds) The dawn chorus occurs