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King of the Castle
Male cichlids often build "shell castles" to attract a mate. However, some of these shells already have tenants.
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Mutant Planet:   King of the Castle
Male cichlids often build "shell castles" to attract a mate. However, some of these shells already have tenants.
Aired: 1/28/11
Views: 23347
Network:  Science Channel
 
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