Bernard Castelein / Ring-tailed lemur (Lemur catta) juvenile on branch, Anjaha community conservation site, Ambalavao, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother carrying very young (1-2 week) babies, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) two-week holding onto mothers stomach, baby Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother carrying two-week baby, feeding on spiny forest tree (Alluaudia procera) Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) feeding on flower. Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with 1-2 week twins in tree, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) baby (2-4 weeks) starting to explore near mother .Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with very young (1-2 week) baby riding on back, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) baby (2-4 weeks) on mothers back, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) feeding on spiny forest tree (Alluaudia procera) Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) female carrying two-week baby on back, standing upright to feed on flowers, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother carrying very young (1-2 week) babies, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) baby (2-4 weeks) on mothers back, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with two-week-old baby on back feeding on spiny forest tree (Alluaudia procera) Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with very young (1-2 week) baby riding on back, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) female carrying two-week baby on back, standing upright to feed on flowers, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with very young (1-2 week) baby riding on back, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother suckling very young (1-2 week) baby. Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother and very young (1 week) baby. Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) feeding on spiny forest tree (Alluaudia procera).Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with very young (1-2 week) babies riding on back, Berenty Private Reserve, Madagascar.

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mother with very young (1-2 week) baby twins suckling, Berenty Private Reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female with baby chewing its own tail, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female reaching towards baby, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female sunbathing, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female with dead baby, killed during fight between females. Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) females grooming baby, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) scent marking territory, Berenty reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female carrying tiny baby, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) group of three basking in sun, Berenty reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) feeding on Opuntia cactus, Berenty Reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) in spiny tree, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) foraging in sisal flowers, during a poor year for fruit, Berenty reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) Berenty Reserve, Madagascar, September.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) females carrying babies, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) with tail wrapped around baby, Berenty Reserve, Madagascar.

Cyril Ruoso / Ring tailed lemurs (Lemur catta) group in tree at sunrise, Berenty Reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) female with dying baby, killed during fight between females. Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) male sunbathing, Berenty reserve, Madagascar

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) foraging in sisal flowers, during a poor year for fruit, Berenty reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) feeding on sisal flowers stalk, during a poor year for fruit, Berenty reserve, Madagascar.

Cyril Ruoso / Ringed-tailed lemur (Lemur catta) resting, Berenty Reserve, Madagascar

Cyril Ruoso / Ringer tailed lemur (Lemur catta) female with young, Berenty Reserve, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta), mother suckling baby on sunny rocks, with two fighting behind, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) resting with tail wrapped around body, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) resting with tail wrapped around body, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemurs (Lemur catta) grooming each other. Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemurs (Lemur catta) grooming each other, Anjaha Community Conservation Site, near Ambalavao, Madagascar.grooming

Bernard Castelein / Ring-tailed lemur (Lemur catta) mother carrying baby, at mineral lick, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) mother carrying baby, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) mother running and carrying baby, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) female carrying two babies. Anjaha Community Conservation Site, near Ambalavao, Madagasca

Bernard Castelein / Ring-tailed lemur (Lemur catta) group drinking near forest, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) group drinking near forest, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Bernard Castelein / Ring-tailed lemur (Lemur catta) in habitat, Anjaha Community Conservation Site, near Ambalavao, Madagascar.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) at sunset, Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) tail. Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) sunning. Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) sunning at sunset, Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) sunning. Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) female with baby. Berenty Reserve, Madagascar. Endangered species.

Enrique Lopez-Tapia / Ring-tailed lemur (Lemur catta) on branch. Berenty Reserve, Madagascar. Endangered species.

Mark MacEwen / Ring Tailed Lemur (Lemur catta) portrait, captive. Duke Lemur Center, Durham, North Carolina, USA.

Mark MacEwen / Ring Tailed Lemur (Lemur catta) scent marking spur marks left on a scent post, Duke Lemur Centre, Durham, North Carolina, USA

Mark MacEwen / Ring Tailed Lemur (Lemur catta) scent marking, digging its spurs in to mark the branch, captive Duke Lemur Center, Durham, North Carolina, USA.

Nick Garbutt / Female Ring-tailed Lemur (Lemur catta) foraging in leaf litter and carrying an infant (6-8 weeks). Berenty Private Reserve, southern Madagascar.

Nick Garbutt / Ring-tailed Lemur (Lemur catta) foraging in leaf litter. Berenty Private Reserve, southern Madagascar.

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) troop grooming in a tree, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) group, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) mothers and babies, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) baby's hand in mother's hand, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) eating flower, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) mother with baby leaping between trees, Berenty Private Reserve, Madagascar

Inaki Relanzon / Ring-tailed lemur (Lemur catta) group in tree in Anja Private Reserve, near Ambalavao, Central Madagascar.

Inaki Relanzon / Ring-tailed lemur (Lemur catta) baby holding on to mother, Anja Private Reserve, near Ambalavao, Central Madagascar.

Inaki Relanzon / Ring-tailed lemur (Lemur catta) baby holding on to mother, Anja Private Reserve, near Ambalavao, Central Madagascar.

Inaki Relanzon / Ring-tailed lemur (Lemur catta) Anja Private Reserrve, near Ambalavao, Central Madagascar.

Roland Seitre / Ring-tailed Lemur (Lemur catta) juvenile clinging to parent

Roland Seitre / Ring-tailed Lemur (Lemur catta) with juvenile

Mark MacEwen / Ring-tailed lemur (Lemur catta) mother and baby, sun bathing early morning, Berenty reserve, Madagascar.

Konrad Wothe / Ringtailed Lemurs playing (Lemur catta) Nahampoana Reserve, South Madagascar, Africa

Konrad Wothe / Ringtailed Lemur with baby (Lemur catta) Berenty Reserve, South Madagascar, Africa

Konrad Wothe / Ringtailed Lemur (Lemur catta) male, Berenty Reserve, South Madagascar, Africa

Konrad Wothe / Ringtailed Lemurs (Lemur catta) sunbathing in Tamarind tree, Berenty Reserve, Madagascar, Africa

Konrad Wothe / Ringtailed Lemur (Lemur catta) in tree, near Ambalavao, Madagascar, Africa

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) female grooming another female's baby, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) , Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) running with baby on her back, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) licking cement wall for salt , Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) mother with two-week-old baby drinking, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) two-week-old baby clinging to mother, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) female grooming another female's offspring, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) mother with two-week-old baby feeding on young leaves, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) young males fighting, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) sunbathing at sunrise, Berenty Private Reserve, Madagascar

Suzi Eszterhas / Ring-tailed Lemur (Lemur catta) mother with week-old baby feeding on Madagascan Ocotillo (Alluaudia procera) cactus, Berenty Private Reserve, Madagascar