Goats if they are looked after well could live to their 20s.
A Billy Goat.
Depends when it was born.
2.5 million years old
An "old goat" is a grumpy old man, like an old goat who is likely to butt you just because you're nearby. It can also be a sexual slang meaning an older man who thinks about sex all the time and is always looking for more.
A goat
No
Earl 'The Goat' Manigault was born on September 7, 1944 and died on May 15, 1998. Earl 'The Goat' Manigault would have been 53 years old at the time of death or 70 years old today.
Old Whiskers
by a goat
You're a randy old goat. (Thou art an unfaithful goat.)
A goat needs to be at least 12 weeks old to be weaned, but ideally should be between 3-4 months old. This allows the goat to develop a strong immune system and digestive system before being separated from its mother's milk.
A deer that is a year old.