Oh. Oh. Well, wasn't he a big fellow? The Doctor looked up at the big floofy creature and offered a beaming smile. A woolly mammoth in the flesh no doubt! A flashback through time a few thousand years or so.

"A good question. Well, we have a binary vascular system, come from the planet Gallifrey, talk a lot and enjoy a good cup of tea when it's about. Of course there's much more to it than that but I'd like to say hello."

The Doctor now waving to his new big friend.

"I'm the Doctor. Timelord."