@Misc{Wiki,
 howpublished = {\url{http://en.wikipedia.org/wiki/Choloepus_didactylus}}
} 

@Book{Kooy2010,
 author = {Kooijman, S.A.L.M.},
 year = {2010},
 title  = {Dynamic Energy Budget theory for metabolic organisation},
 publisher = {Cambridge Univ. Press, Cambridge},
 pages = {Table 4.2 (page 150), 8.1 (page 300)},
 howpublished = {\url{../../../bib/Kooy2010.html}}
} 

@Misc{AnAge,
 howpublished = {\url{http://genomics.senescence.info/species/entry.php?species=Choloepus_didactylus}}
} 

@Article{HarpEyre2003,
 author = {L. Harper and S. Eyre and C. Kibbey and J. P. Partridge},
 year = {2003},
 title = {Hand-rearing a two-toed sloth \emph{Choloepus didactylus} at {Bristol Zoo Gardens}},
 journal = {Int. zoo Yb.},
 volume = {38},
 pages = {178--186}
}