There are many animals thought to be extinct, but they may be alive today. From the Megalodon to the Japanese River Otter to the Passenger Pigeon, to the Javan Tiger to the Mexican Grizzly Bear to the Woolly Mammoth, these are animal species that vanished but could resurface someday. Are these extinct animals still alive today? Maybe; they could be found alive at any moment! WatchMojo counts down ten animals we thought were extinct but might be alive!
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