Which Famous Animal ?

[Minnie]

Idea for new game,

Same as who am I , only I am a famous animal in History.
Example
Tom is my enemy.
answer - Jerry, mouse Walt Disney
I'II Start

I am a very famous Guard?

[michael parker]

What does this animal guard?

[Minnie]

His master, clue- graveyard. ?

[michael parker]

Greyfriars Bobby?

[Minnie]

Spot On , Your go. Michael.

[michael parker]

Infamous Rat.

[Minnie]

Roland Rat ?

[michael parker]

Spot on.Your shot oh Mighty One.

[Minnie]

A very famous explorer found me, brought me to England, then took me to
live in Australia. I was very, very , old. ?

[michael parker]

Some sort of Tortoise?