Q How are plesiosaurs, including Plesiosaurus, thought to have given birth to their young?

Q: How are plesiosaurs, including Plesiosaurus, thought to have given birth to their young?

A.They came ashore and laid eggs on sandy beaches. B.They laid eggs underwater and guarded them until they hatched. C.They gave birth to live young underwater.

A They came ashore and laid eggs on sandy beaches.
B They laid eggs underwater and guarded them until they hatched.
C They gave birth to live young underwater.

Answer

C They gave birth to live young underwater.

Plesiosaurs are thought to have given birth to live young, rather than laying eggs on land.
One important clue comes from a fossil of an adult plesiosaur in which the bones of an unborn young were preserved inside the body.
This suggests that plesiosaurs were adapted to a fully aquatic lifestyle and did not need to come ashore to reproduce.

Share this page

Quiz List