azbeasts

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An A-Z of Fantastic Beasts - Phoenix; M.O.M. Classification: XXXX*

The phoenix is a magnificent, swan-sized, scarlet bird with a long golden tail, beak and talons. It nests on mountain peaks and is found in Egypt, India and China. The phoenix lives to an immense age as it can regenerate, bursting into flames when its body begins to fail and rising again from the ashes as a chick. The phoenix is a gentle creature that has never been known to kill and eats only herbs. It can disappear and reappear at will. Phoenix song is magical: it is reputed to increase the courage of the pure of heart and to strike fear into the hearts of the impure. Phoenix tears have powerful healing properties.

*The phoenix gains a XXXX rating not because it is aggressive, but because very few wizards have ever succeeded in domesticating it.

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An A-Z of Fantastic Beasts - Hippogriff; M.O.M. Classification: XXX

The Hippogriff is native to Europe, though now found worldwide. It has the head of a giant eagle and the body of a horse. It can be tamed, though this should be attempted only by experts. Eye contact should be maintained when approaching a Hippogriff. Bowing shows good intentions. If the Hippogriff returns the greeting, it is safe to draw closer.
The Hippogriff burrows for insects but will also eat birds and small mammals. Breeding Hippogriffs build nests upon the ground into which they will lay a single large and fragile egg, which hatches within twenty-four hours. The fledgling Hippogriff should be ready to fly within a week, though it will be a matter of months before it is able to accompany its parents on longer journeys.

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An A-Z of Fantastic Beasts - Basilisk (also known as the King of Serpents); M.O.M. Classification: XXXXX

The first recorded Basilisk was bred by Herpo the Foul, a Greek Dark wizard and Parselmouth, who discovered after much experimentation that a chicken egg hatched beneath a toad would produce a gigantic serpent possessed of extraordinarily dangerous powers. 
The Basilisk is a brilliant green serpent that may reach up to fifty feet in lenght. The male has a scarlet pluma upon its head. It has exceptionally venomous fangs but its most dangerous means of attack is the gaze of its large yellow eyes. Anyone looking directly into these will suffer instant death.
If the food source is sufficient (the Basilisk will eat all mammals and birds and most reptiles), the serpend may attain a very great age. Herpo the Foul’s Basilisk is believed to have liced for close on nine hundred years.
The creation of Basilisks has been illegal since medieval times, although the practice is easily concealed by simply removing the chicken egg from beneath the toad when the Department for the Regulation and Control of Magical Creatures comes to call. However, since Basilisks are uncontrollable except by Parselmouths, they are as dangerous to most Dark wizards as to anybody else, and there have been no recorded sightings of Basilisks in Britain for at least four hundred years.

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An A-Z of Fantastic Beasts - Merpeople (also known as Sirens, Selkies, Merrows); M.O.M. Classification: XXXX*

Merpeople exist throughout the world, though they vary in appearance almost as much as humans. Their habits and customs remain as mysterious as those of the centaur, though those wizards who have mastered the language of Mermish speak of highly organised communities varying in size according to habitat, and some have elaborately constructed dwellings. Like the centaurs, the merpeople have declined ‘being’ status in favour of a 'beast’ classification.
The oldest recorded merpeople were known as sirens (Greece) and it is in warmer waters that we find the beautiful mermaids so frequently depicted in Muggle literature and painting. The selkies of Scotland and the Merrows of Ireland are less beautiful, but they share that love of music which is common to all merpeople. 

*See classification footnote for centaur.