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David
Marjanovic wrote on 09/01/2001
>> Living birds have lost the
right ovary and therefore lay only one even
bigger egg at a time,
exceptions are AFAIK the kiwi and at least one
atavistic chicken: those
lay 2 eggs at once. <<
Doesn't kiwis lay only one egg per season
which weighs nearly 25% of an
adult? So what's the exception with kiwis?
Cheers
Heinz Peter
Sorry, what I actually read was that kiwis have 2
functional ovaries, which is unusual among birds, not that both are actually
working at the same time.
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