Subject: Travel in pods

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Dear Tara and Kayla,
	Thank you for your question asking why whales travel in pods.  In
general, marine mammals are social animals.  Unfortunately, they spend
more than 70% of their lives under water.  Because they live underwater,
they are not as easy to study as land mammals.  In some cases, it provides
protection.  For example,  predators like sharks find a lone dolphin an
easy target.  Simply, there is a certain security in numbers.  In other
instances, important social interaction occurs when the animals are in
groups.  
	
Sincerely,
Lori

On Wed, 14 May 1997, Martha Gray wrote:

> Dear Scientist,
> 
> 	Do you know why whales travel in pods?
> 
> 	Sincerely, 
> 					Tara and Kayla
> 

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