Donkey

Donkeys vary considerably in size, depending on breed
and management. It's height varies from 80 to 160 cm
(31 to 63 in), and the weight from 80 to 480 kg (180
to 1,060 lb). Working donkeys in the poorest countries
have a life expectancy of 12–15 years; in more
prosperous countries, they may have a lifespan of 30
to 50 years.A male donkey or ass is called a jack, a
female a jenny or jennet; a young donkey is a foal.
A jennet is normally pregnant for about 12 months
, though the gestation period varies from 11 to 14
months, and usually gives birth to a single foal.