A Formica ant suspends a drop of aphid honeydew between her mandibles (which bristle with 7 or more teeth), as she drinks it. 
		Photo courtesy of Alex Wild, copyright, used with permission.WonderQuest:  On the web since 1997...      

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Top 10 Questions

1. Ceiling fan - way to rotate

2. Average size US woman

3.  What animal lives longest?

4. Can eye color change?

5. Animals that mate for life

6. Does alcohol kill brain cells

7.Does the Moon rotate?

8. Septic tank - how often pump?

9. What exactly are hazel eyes?

10. Most poisonous animal!

 

Current Column: 

A microwave-safe TV dinner tray.

Microwaving plastics 101

Do the recycle numbers assigned to plastic containers indicate if they are safe to use for heating food in a microwave oven?


Readers' Question

Panther, a toilet-using cat, photographed in San Francisco on 22 August 2005. He is ten years old and has been using the toilet since the age of six months.  Photo courtesy of 'Reward.'Readers contributed to December's walking geese question.  Here's your next question: 

Can a domestic cat be trained as well as a dog? Because, I've tried to train mine with not much success...  Vicky, Maracaibo, Venezuela

Deadline:  22 Feb.  We will publish the best answers on 8 March. 

You get the credit.  Click here to give April your answer:  Answer the question.

 

 

Definitions:  chitin, cuticle

Chitin is a fibrous material analogous to fiberglass — layered on, tough, and light.

The cuticle is a structure made of protein and chitin that serves insects as both outside skeleton (armor) and skin.

 

 

 

 

 

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