from the movie: Harry Potter and the Philosopher's Stone A Troll
is a magical creature of prodigious strength and immense
stupidity. Trolls generally reach a height of about twelve feet
and weigh up to nearly a ton. They are dangerously violent and
incredibly aggressive, and then engage in unpredictable
behaviour; a bit comparable with giants. Trolls originated in
Scandinavia, but are now found all across Europe. Trolls feed on
raw flesh, and are not that fussy about what they eat, from
animals to even humans. Troll language is nothing more than
simple grunts that only Trolls seem to be able to interpret,
though skilled magical multi-linguists such as Barty Crouch can
understand them. Trolls understand only a limited number of
Human words, and some smarter ones can be skillfully trained as
security Trolls. Professor Quirrell had a gift for communicating
with Trolls, and then used it to set one loose in Hogwarts
School of Witchcraft and Wizardry in 1991 in an effort to steal
the Philosopher's Stone. A Troll wa