Like most mammals, giant, dinosaur-era marine reptiles gave birth to live young,...

Like most mammals, giant, dinosaur-era marine reptiles gave birth to live young, a new fossil study hints. But did the monsters mother?


"Sea Monster" Fetus Found—Proof Plesiosaurs Had Live Young?
news.nationalgeographic.com
The study focused on a 78-million-year-old, 15.4-foot-long (4.7-meter-long) adult Polycotylus latippinus plesiosaur fossil found in 1987. The finding, detailed in this week's issue of the journal Science, is the first proof that plesiosaurs were viviparous—that they gave birth to live young.

Source: National Geographic's Facebook Wall