Teen tigers have a taste for trouble Taronga Zoo's Sumatran Tiger cubs are growing up and are now 20 months old. The tigers have also swapped enclosures with the Lions as a trial to see how the respond to a new environment / Pic: Toby Zerna Source: The Daily Telegraph Mum Jumilah / Pic:: Toby Zerna Source: The Daily Telegraph THEY may weigh up to 100kg, almost their adult weight, but Taronga Zoo's young tigers are true teenagers when it comes to mischief. As keepers arrived at the new tiger enclosure on Tuesday morning, they found out the terrible trio, who are almost two-years-old, had had a ball overnight playing with the enclosure's elephant ear plants. "The elephant ears were squashed," Taronga's senior carnivore keeper Deb Price said. Sumatran tigers Kembali, Sakti and Kartika were born at the zoo to Jumilah and Satu in 2011.