The illustrated
All creatures kama sutra

Whose sperm?

Competition

Latest: Sorry but this competition has now closed

We have 10 copies of Dr Tatiana’s Sex Advice to All Creation to give away. The first 10 entrants to correctly match the sperm to the mammal will win their own copy of this definitive guide to the evolutionary biology of sex.

1 Bull
2 Guinea pig
3 Bandicoot
4 Human
5 Rat
6 Chinese hamster
7 Dog
8 Echidna
9 Cat

Graphic version

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