Sibro

The Sibro is a creature which like an apple comes from a tree 'a Sibro tree ', this tree can hatch up to 100 Sibro as the most of their young don't survive.The Sibro has ten arms and five eyes, this terrifying creature can stop its enemies from talking, just by uttering one word. That word was 'quiet'. The Doctor met the Sibro when adventuring after stealing the type 40 TARDIS from Galifrey, the Sibro were very small in numbers. There were only 30 of them, born from the same tree they never repopulated. The Doctor, in his first incarnation saved half of them, when there planet got impacted by a meteorite and was slowly moving towards the solar system's star. The Doctor still doesn't know what happened to the Sibro species only that 15 of them might still be alive.

The Sibro were also suspected to be able to live up to 250 years, as no one but the Doctor have seen this species this is very unlikely. The year when the Sibro lived is unknown, but it is known that they were alive centuries before the dinosaurs, and there planet wasn't from that universe. No one knows how they got to our universe this was a problem even the Doctor couldn't solve he thought they had time travel themselves but saw no evidence of this.