The donkeys are members of the horse
family (Equidae). Like other equids, they are
fast runners adapted for life on open grasslands
and deserts. Their posture is unguligrade, meaning
that they run on the tips of their toes. Their legs
are long and adapted for speed. Each foot has only
one toe-the hoof-another adaptation for speed.
Equids are grazers and sometimes browsers.
Asses especially will browse.
The donkey or domestic ass is descended fromthe
African wild ass. Donkeys first appeared on wall
paintings and in burials six thousand years ago in
Egypt and western Asia. They have been used
widely by farmers and traders as pack animals
and to pull wheeled vehicles.
Donkeys have been bred to be smaller than
their ancestor, the African wild ass. The goal was
to produce a thrifty animal that gave the greatest
amount of work for the least amount of feed. Being
descended from a desert animal, donkeys are
better suited to the Mediterranean climate than to
northern Europe. Donkeys were introduced to
China in the third century b.c.e. Donkeys were
brought to the Americas by the Spanish, who call
them "burros", beginning in the seventeenth century.
It is possible, but awkward, to ride a donkey.
Because of the animal's low withers, a human
rider must sit far back in the donkey seat to avoid
sliding forward. This produces a bumpy ride and
has precluded the donkey's use as a mount in
hunting or battle.
Classification:
Kingdom: Animalia
Subkingdom: Bilateria
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Subclass: Eutheria
Order: Perissodactyla
Family: Equidae (horses)
Genus and species: Equus asinus (donkeys or domestic asses)
Geographical location: The domestic donkey is descended
from the wild ass of the hot deserts of Africa and Arabia
Habitat: Donkeys are well-adapted to hot, dry
deserts, yet selective breeding has produced donkeys that
thrive in the damp climate of Ireland
Gestational period: 11.5 months
Life span: Twenty to twenty-five years on average
Special anatomy: Long ears dissipate heat; broad single toe
(hoof) on each foot is an adaptation for running; capable of
digesting large quantities of low-protein fodder
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