回覆 13# 的帖子
there's nothing wrong with his statement
he is only saying that all mammals are viviparous
and u are giving the two exceptional cases in mammals which are oviparous.
Two different aspects u r mentioning; with no contradictions
Simply, both are correct
[ 本帖最後由 kai_matt 於 19-10-2012 01:06 編輯 ]