Q How is Nothosaurus thought to have swum?

Q: How is Nothosaurus thought to have swum?

A.It propelled itself by moving its powerful tail from side to side, while using its limbs mainly for assistance B.It swam using only its limbs, like a fish C.It propelled itself by moving its neck from side to side

A It propelled itself by moving its powerful tail from side to side, while using its limbs mainly for assistance
B It swam using only its limbs, like a fish
C It propelled itself by moving its neck from side to side

Answer

A It propelled itself by moving its powerful tail from side to side, while using its limbs mainly for assistance

The limbs of Nothosaurus had evolved into paddle-like flippers, but they still retained fingers and claws similar to those of land-dwelling animals at their tips.
It is thought to have generated propulsion by moving its tail from side to side, while its fingered limbs helped it swim and may also have been used for walking on land.

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