By Megan Gannon, News Editor   |   March 13, 2014 05:49pm ET
Tiger mom Melati cleans her newborns.
Credit: ZSL London Zoo

Three baby Sumatran tiger cubs were recently born at the London Zoo.

After a pregnancy that lasted 106 days, the 5-year-old Sumatran tigress Melati gave birth to three cubs in her den on Feb. 3. Since then, keepers say they’ve been watching the family by a remote camera.

“While we still don’t know whether they’re boys or girls, we’re starting to see their personalities develop,” zookeeper Teague Stubbington said in a statement. “We’ve nicknamed one Trouble, as it’s much bolder than the others — it was the first to start exploring its den and we’ve spotted it waking up its siblings when they fall asleep!”

Three of the nine known subspecies of tigers have gone extinct in the past 70 years, and conservationists fear Sumatran tigers are headed in that direction. The animals, which are only found on the Indonesian island of Sumatra, are listed as critically endangered on the International Union for Conservation of Nature’s Red List of Threatened Species.

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