Just about all animals start off small when they’re born, and grow to be a lot bigger — not just us humans, but all the birds, reptiles, fish and other critters out there. So our friend Libby O. asked us, how tall are baby penguins compared to their moms and dads? (along with an awesome penguin drawing!) It turns out baby penguins are the smallest of all baby birds compared to the size of their parents. The biggest penguin, the emperor penguin, stands around 4 feet tall, while its babies are just 6 inches tall! The eggs weigh only about 1/50th of their parents’ weight. Even for smaller penguin types, the egg weighs only about 1/30th as much as the mom. Let’s hope they move out of the way when the chick wants to chip its way out!
Wee ones: Who’s shorter, a 5-inch penguin chick or a 6-inch one?
Little kids: Penguin eggs have such a thick shell that it can take 3 days to hatch. If the chick starts chipping through on a Tuesday and pops out 3 days later, what day of the week is it? Bonus: On what day would the chick have to start to break out on a Sunday?
Big kids: If you weighed 5 pounds when born and your mom weighed 30 times as much, how much did your mom weigh? Bonus: If the penguin egg weighs 11 ounces and the mom weighs 50 times as much, how much does the mom weigh? And for a megabonus, what’s that in pounds and ounces?
Wee ones: The 5-inch penguin.
Little kids: A Friday. Bonus: On Thursday.
Big kids: 150 pounds, which might have been right — not too different a ratio from some penguins! Bonus: 550 ounces, which is 34 pounds 6 ounces.
Laura Bilodeau Overdeck is founder and president of Bedtime Math Foundation. Her goal is to make math as playful for kids as it was for her when she was a child. Her mom had Laura baking before she could walk, and her dad had her using power tools at a very unsafe age, measuring lengths, widths and angles in the process. Armed with this early love of numbers, Laura went on to get a BA in astrophysics from Princeton University, and an MBA from the Wharton School of Business; she continues to star-gaze today. Laura’s other interests include her three lively children, chocolate, extreme vehicles, and Lego Mindstorms.