After medical cartoons (1 and 2), here is a list of medical and scientifical jokes. You can learn how to sing a biological song, you can read jokes, last words, but my favourite was the dictionary. Take a look at some featured entries:

Chemical Engineering: The practice of doing for a profit what an organic chemist only does for fun.

Genetic Engineering: A recent attempt to formalize what engineers have been doing informally all along.

Organic Chemistry: The practice of transmuting vile substances into publications.

Research: (Irregular noun) That which I do for the benefit of humanity, you do for the money, he does to hog all the glory.