Penguins aren't people. They're reptiles.
Check this out. You can't expect profoundly different species to be alike in every way. Birds are among the most social animals. Their behaviour may be social, rather than sexual.
Off Topic » in reply to Oh, talk to me about idealism.
Check this out. You can't expect profoundly different species to be alike in every way. Birds are among the most social animals. Their behaviour may be social, rather than sexual.