Taronga Western Plains Zoo has released never-before-seen footage of Siamang duo Kasarna and Kasem performing the iconic call of their species.

Siamangs have the loudest call of any primate species, with every bonded pair forming a completely unique duet. Kasarna and Kasem made their public debut together in December 2025 and are still refining their sound.

“Kasarna and Kasem are strengthening their bond every single day, wrestling together, little play fights and just following each other around, so no matter where you find them on their islands, they’re usually together,” Keeper Grace Humphery said.

“The Siamangs’ call can be heard up to three kilometres away, and that call is very important to them as a bonded pair.

“We’ve had heard a lot of changes and a lot of new notes, so keep an ear out when you’re at the Zoo and if you do hear them, it’s worth coming straight to the islands and hopefully you can see these guys have a duet together.”

Guests can learn more about this endangered species at the keeper talk and feed at 2:20pm daily. With up to eight feeds each day there are plenty of chances to see Kasarna and Kasem on the ground or high up in the trees.

The call of the Siamang is not the only reason to visit Taronga Western Plains Zoo this autumn.

Endangered Black-handed Spider Monkey babies Amarillo, Bonita, Queso and Costa are growing more boisterous by the day. The best place to see them is from the Cafe Wild deck, or aboard one of the Zoo’s four-seater Pedal Boats which are available for hire for just $20 for 30 minutes. Learn more.

The Zoo has also welcomed the pitter patter of tiny hooves with six Eland calves and 12 Blackbuck calves.

“Eland are a very special species for us here in Dubbo where we’ve welcomed over 150 Eland calves since 1976, which is a pretty awesome achievement,” Keeper Ruby Cullen said.

“Early mornings and afternoons are the best times to see the calves frolicking around in the herd.”

The Common Eland is the second largest antelope species in the world, with stable populations roaming across Africa. Guests can get a taste of this on the Savannah Safari Tour which ventures into a mixed-species habitat including Giraffe, Zebra, White Rhinos and Eland. Learn more at https://taronga.org.au/dubbo-zoo/tours/savannah-safari

April will also see the return of the popular Red Energy WILDLIFE SAVER Trail, which invites families on a mission to discover the powerful impact of Taronga’s conservation work for the chance to win an amazing family stay!

Taronga Western Plains Zoo is open from 8:30am - 5pm, 365 days a year including public holidays. Learn more about planning a trip to Taronga Western Plains Zoo.