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The Database of Number Correlations 
Numbers Related to Animals
Dogs have
4 Blood Types.
Cats have
11 Blood Types.
Pigs have
16 Blood Types.
Horses have
34 Blood Types.
There are
43 species of birds in Antarctica.
The average gestation period of a dog is
61 days.
The gestation period of a wolf is
64 days.
The gestation period of a lion is
108 days.
The gestation period of a domestic pig is
114 days.
The gestation period of a goat is
151 days.
The gestation period of an African elephant is
640 days.
The gestation period of an Asian elephant is
645 days.
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