Do Polar Bears Get Lonely? is this year's popular science title from the New Scientist, following in the footsteps of Why Don't Penguins' Feet Freeze? and Does Anything Eat Wasps? and is clearly targeting the presumably lucrative Christmas stocking filler market.

I think the title is at least as important as the underlying science, and so I've come up with a few suggestions for next year's offering:

• Why Do Bats Knees Bend Both Ways?
• Do Kangaroos Like Quiche?
• Why Do Fish Think Backwards?
• How Come Pigs Are So Sarcastic?
• Why Do Dogs Like Sticks But They Don't Like Stones?
• Can Squirrels Really See Smells?

Just in case one of these titles appears on the shelves next year, remember where you saw them first.