Ready to add more genetic diversity to your Spore game collection? Amazon is offering the chance to get the latest Wii and DS variants in the franchise at a nice discount.

The action-adventure Spore Hero for Wii is $17.99, while the DS fighting game Spore Hero Arena has been knocked down to the impulse-buy price of $10.99. Don't take too much time making the natural selection about whether to buy one or both: as Amazon's Deal of the Day, these offers will be gone tomorrow.