As the doctor completed an examination of the patient, he said:
- I can"t find a cause for your complaint. Frankly, I think it"s due to drinking.
- In that case, - said the patient, - I"ll come back when you"re sober.
The world"s largest mammal, the blue whale, weighs 50 tons at birth. Fully grown, it weighs as much as 150 tons.