Quiz – The Baby Edition

by Deb on November 15, 2011

Baby

I should probably call it the reproductive edition, although I’m only looking at animals. But have you ever thought about all the different solutions to passing your genes on?

  1. What is the difference between precocial and altricial babies?
  2. A nice easy one for Australians – how do monotremes have babies?
  3. How is gender determined in baby crocodiles?
  4. What do ostriches and pipefish have in common?
  5. And what is the picture? Courtesy of Ian Armstrong.

Answers here.

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{ 4 comments… read them below or add one }

Michelle November 15, 2011 at 10:28 am

Ok, I think I can answer at least a couple of these 🙂

1. No idea…
2. They lay eggs yes? Monotremes are egg laying mammals.
3. I believe it is by the temperature at which the eggs are kept – I can’t remember which way around it is but above a certain temp is one sex, below it the other.
4. No idea…
5. The picture is a shark egg… is it a Port Jackson shark?

Reply

Deb November 24, 2011 at 9:54 am

No, yes, yes, no, and yes!
Thanks for playing, sorry it took me so long.

Reply

Tracy November 15, 2011 at 4:24 pm

1. No idea, but I’ll guess! Precocial looks like precocious so maybe they’re babies born with all the skills necessary to live and don’t have a parent looking after them. And I’m guessing The other is the opposite – need some parental care after birth.
2. Monotremes lay eggs.
3. I think it’s determined by temperature. The eggs in the top of he nest are warmer and come out of the egg one gender and the ones lower down are cooler and come out the other gender. I don’t know which is which but I’ve got a 50% chance of getting it right, so I’ll guess males from the warmer eggs and females from the cooler eggs.
4. I think it’s that the males look after the eggs and babies.
5. It’s a shark egg.

Reply

Deb November 24, 2011 at 9:56 am

Yes (although they still have parental care), yes, yes, yes, and yes!
Gold star for you 😀

Reply

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