Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: Frogs and salamanders compete with each other for insects. Both frogs and salamanders catch flying insects with their tongues. Which feature would most likely help both animals compete for flying insects?
sticky tongues
Long, sticky tongues.