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Sun, Apr. 3rd, 2005, 10:51 am
Make a joyful noise!

Research by Jaak Panksepp has found that rats laugh--when you tickle their belly, when they play, when they make love. Their laugh is beyond the range of human hearing, but this is what they do when they feel joy.

Sun, Apr. 3rd, 2005 01:24 am (UTC)
swiftrat

*giggle*

I find it funny how they used a picture of mice instead of rats in that .pdf file.

Sun, Apr. 3rd, 2005 05:06 am (UTC)
odious: Icon

You do realize that that icon can be very misconstrude right?

Sun, Apr. 3rd, 2005 08:39 am (UTC)
mike_a_roo: Re: Icon

don't you like pink carrots :)?

Sun, Apr. 3rd, 2005 09:53 am (UTC)
odious: Re: Icon

Another roo on LJ?!

Sun, Apr. 3rd, 2005 11:41 am (UTC)
marko_the_rat: Re: Icon

The thought had crossed my mind. But it is a risk I must take. ;)

Sun, Apr. 3rd, 2005 06:10 pm (UTC)
nicodemusrat: Re: Icon

And the comments on the photos you posted were, of course, entirely innocent in nature, too. ;)

But, hey, it's a dang cute 'suit, so it should be shown! :>

Sun, Apr. 3rd, 2005 10:03 am (UTC)
peromyscus

Well when I used to tickle my rat, she chittered her teeth, and kept moving her eyes. So I don't think that she was laughing, but the chittering of her teeth was a way of her showing that she was happy.
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