Animal
Gestation or
incubation,
in days
(average)
Longevity,
in years
(record
exceptions)

Ass
365
18–20 (63)

Bear
180–2401
15–30 (47)

Cat
52–69 (63)
10–12 (26+)

Chicken
22
7–8 (14)

Cow
280
9–12 (39)

Deer
197–3001
10–15 (26)

Dog
53–71 (63)
10–12 (24)

Duck
21–351 (28)
10 (15)

Elephant
510–7301 (624)
30–40 (71)

Fox
51–631
8–10 (14)

Goat
136–160 (151)
12 (17)

Groundhog
31–32
4–9

Guinea pig
58–75 (68)
3 (6)

Hamster, golden
15–17
2 (8)

Hippopotamus
220–255 (240)
30 (49+)

Horse
329–345 (336)
20–25 (50+)

Human
253–303
(2)

Kangaroo
32–391
4–6 (23)

Lion
105–113 (108)
10 (29)

Monkey
139–2701
12–151 (29)

Mouse
19–311
1–3 (4)

Parakeet (Budgerigar)
17–20 (18)
8 (12+)

Pig
101–130 (115)
10 (22)

Pigeon
11–19
10–12 (39)

Rabbit
30–35 (31)
6–8 (15)

Rat
21
3 (5)

Sheep
144–1521 (151)
12 (16)

Squirrel
44
8–9 (15)

Whale
365–5471
n.a.

Wolf
60–63
10–12 (16)

 

1. Depending on kind.
2. For human life expectancy charts, see Life Expectancy at Birth by Race and Sex.