New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
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New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)

New Zealand's Wellington Zoo has more than doubled its population of endangered ring-tailed lemurs after its four females gave birth to twins, the zoo's primate manager said on Tuesday.

Ring-tailed lemurs, endemic to Madagascar, are on the endangered list. Wellington Zoo has only had ring-tailed lemurs for 18 months and got Zeus, their male, at the beginning of 2022 with the hope they might be able to add to their population.

Primate manager Lisa Ridley said given all four adult female lemurs were first-time mums, they were not sure whether they'd have success with breeding them.

"We're very, very excited that we've had four sets of healthy twins and they're doing well," she said.

The first set of twins was born in August and the final set was born last week.

The population of ring-tailed lemurs, made famous by King Julien in the 2005 movie "Madagascar", is declining in the wild. One of the challenges is female ring-tailed lemurs are only sexually receptive for one or two days a year.

"The window is literally 24 to 36 hours - that was all the time our male had to do his job," said Ridley. "Zeus is a really, really nice male. He's laid back. He is very respectful of the females and he understands his position within the mob."

Ridley said the zoo was not sure of the sex of the young lemurs as they try not to interfere with them until they are older.

Once they mature, any new males and Zeus would likely be separated to create a bachelor group, as would naturally occur in the wild.

Zeus would be used for breeding for a few more years before being replaced to prevent the genetic pool from becoming too small, Ridley said.



'Amphibious Mouse' among 27 New Species Discovered in Peru's Amazon

A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
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'Amphibious Mouse' among 27 New Species Discovered in Peru's Amazon

A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS
A clearwing butterfly (Oleria sp.) specimen, from one of the 218 species of butterflies observed during an expedition to the Peruvian region of Alto Mayo, is pictured, June 8, 2022. Conservation International/photo by Marlon Dag/Handout via REUTERS

An "amphibious mouse" with partially webbed feet that eats aquatic insects was among 27 new species discovered during a 2022 expedition to Peru's Amazon, according to Conservation International.

Scientists also discovered a spiny mouse, a squirrel, eight types of fish, three amphibians and 10 types of butterflies, Trond Larsen, head of Conservation International's Rapid Assessment Program, told Reuters this week.

He added that another 48 species found by investigators were potentially new, but needed further study.

The new species were found in Alto Mayo, a protected area with several ecosystems, Indigenous territories and villages.

"Discovering so many new species of mammals and vertebrates is really incredible, especially in such a human-influenced landscape as Alto Mayo," Larsen said.

The expedition between June and July 2022 was made up of 13 scientists plus local technicians and members of Indigenous groups.

"It was really fantastic to work so closely with the Awajun people. They have extensive traditional knowledge about the forests, animals and plants they live side-by-side with," Larsen said.

Among the new species, Larsen highlighted the spiny mouse that has stiff fur, the amphibious mouse, and a dwarf squirrel that measures 14 cm (5.5 in).

"(The squirrel) fits so easily in the palm of your hand. Adorable and beautiful chestnut-brown color, very fast," Larsen said. "It jumps quickly and hides in the trees."

Another favorite discovery was the blob-headed fish, a type of armored catfish, he said.

A total of 2,046 species were recorded during the 38-day expedition using camera traps, bioacoustic sensors and DNA sampling. Among them, 49 were classified as threatened, including the yellow-tailed woolly monkey and the tree monkey.

Larsen said the discoveries reinforced the need to protect the area.

"Unless steps are taken now to safeguard these sites and help restore parts of the landscape ... there's a strong chance they won't persist in the long term," Larsen said.