The animals are dealt with in groups-viviparous and oviparous quadrupeds, fish, serpents, birds, etc.
"Fathers of Biology"
Charles McRae
They were viviparous, warm-blooded, and suckled their young, but gray feathers covered their hides.
"Duel on Syrtis"
Poul William Anderson
Though they are oviparous, yet they are viviparous also, hatching their young within their bellies, and then bringing them forth.
"The-Natural-History-of-Selborne"
White, Gilbert