The Clouded Leopard cubs at Toronto Zoo are growing! ZooBorns introduced readers to the pair when they were almost one-month-old: “Clouded Leopard Cubs a First for Toronto Zoo”.

The two-month old cubs were born May 13 to mom, Pavarti, and dad, Mingma. Toronto Zoo staff recently reported that the siblings are progressing and growing stronger. The cubs are now very close in size and currently weigh about 1.78 kgs (3.9 lbs) and 1.81 kgs (4 lbs), respectively.

Photo Credits: Toronto Zoo

Pavarti is a first time mom. Immediately after the cubs’ birth, she showed signs of having all the necessary maternal instincts. However, as the first day progressed, staff observed that she started spending less time with her cubs and was not seen nursing or mothering them. Toronto Zoo’s Wildlife Care staff continued to monitor the new family by camera, and a veterinarian checked the cubs the day after they were born. The veterinarian provided the cubs with supplemental fluids to help them through the critical first 24 hours. Wildlife Care staff and the vet continued to monitor the cubs, hoping for a change in the new mom’s behavior toward her cubs. Finally, a decision was made to move the cubs to the intensive care unit (ICU) in the new state-of-art Wildlife Health Centre to provide them with the neonatal care they required and give them the best chance at survival.

Both cubs are currently fed a diet that includes formula (consisting of Esbilac and chicken baby food) and feline meat offered to them separately. As they continue to grow in size, they are beginning to transition from being fed from a bottle to eating out of a dish. Right now the cubs are fed four times a day by Wildlife Health and Wildlife Care staff and have been living in the new Wildlife Health Centre’s Intensive Care Unit (ICU).

This is an exciting time for Wildlife Health Care staff and Wildlife Care staff as they begin to see the Clouded Leopard cub’s different personalities. One cub is slightly darker in color, and is more energetic and ‘sassy’, always taking the bottle very quickly when offered. The second cub is slightly lighter in color, and although also energetic, is not as bold as its sibling.

Both cubs are said to vocalize in a bird-like ‘chirping’ sound and love to leap, run, explore and climb anything and everything they can find. Wrestling with each other is another favorite thing for these siblings to do. Both Clouded Leopard cubs have very long tails, and their teeth are getting to be quite big in size, which is bringing out their teething behaviors.

The Toronto Zoo is a participant in the Clouded Leopard conservation breeding program through the Species Survival Plan (SSP) program. The Clouded Leopard has been listed as “Vulnerable”, on the International Union for Conservation of Nature’s (IUCN) Red List, since 2008.

*Please note: the Clouded Leopard cubs are not visible to the public at this time.