Island ecologists struggle to protect lemurs

Threatened by habitat loss and hunting, Madagascar's lemurs, a critically endangered species, are finding refuge in a private sanctuary on this vast Indian Ocean island.

At Nahampoana game reserve, one of the wide-eyed creatures - the island's signature primate - appears between long bamboo stems, while a little further down three others play in the trees on a riverbank.

Nearly two decades ago, this 50-hectare former French colonial garden was turned into a privately run game reserve.