Given a statement, generate a question such that the answer is contained in that statement.
--------
Question: some predecessors became more mammal-like as they continued to evolve

Answer: What did some predecessors become?


Question: metal, stainless steel and plastic are used to support towers.

Answer: What type of steel is used to support towers?


Question: Some crocodiles can go several weeks between meals.

Answer:
How long can some crocodiles go between meals?