Gestation, Incubation, and Longevity of Certain Animals

Animal
Gestation or incubation,
in days & (average)
Longevity, in years
& (record exceptions)
Ass (Donkey)
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
(121)
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
?
Wolf
60-63
10-12 (16)

(1) Depending on Species