She is, after all, about 40 years old, and in hinny years, that's pretty remarkable.
From the thestate.com
The much rarer successful mating of a male horse and a female donkey produces a hinny.
From the en.wikipedia.org
Cross a male horse and a female donkey and you get a hinny, altogether a different creature.
From the sciencedaily.com
Zebra hinny, zebret and zebrinny all refer to the cross of a female zebra with a male donkey.
From the en.wikipedia.org
Hinny, a cross between a female donkey and a male horse.
From the en.wikipedia.org
Mule and hinny are examples of reciprocal hybrids.
From the en.wikipedia.org
Organisms that can reproduce but almost always make infertile hybrids of at least one sex, such as a mule, hinny or F1 male cattalo are not considered to be the same species.
From the en.wikipedia.org
More examples
Hybrid offspring of a male horse and a female donkey or ass; usually sterile; "a hinny has a gentler disposition than a mule"
The hybrid animal produced when a female ass (jennet) is crossed to an older smaller stallion.
(northern Eng., also "hinnie") friend, buddy, mate, lover. General-purpose term of affection.
Produced by crossing a female donkey (also called a jennet or jenny) with a male horse.