- It's like a plastic sponge.
- It is made of one of the new synthetics.

4 seconds sound clip from the 20 Million Miles to Earth (1957) movie soundboard.

You can hear this line at 01:04:25.607 in the Blu-ray version of the movie.

Quote context

[...]

- If you'll come over here, please. Doctor Uhl's expecting you.

- Doctor Uhl, may I present miss Reynolds united press, mister Maples of Reuters, monsieur Lacroix, News France.

- Glad to meet you.

- How do you do?

- General McIntosh has told us the importance of knowing how this animal survives on Venus.

- We've discovered that the creature's respiratory system includes a sort of a fibrous filtering element which blocks out all of the poisonous vapors on Venus.

- Fortunately, we've been able to duplicate that system almost exactly.

- It's like a plastic sponge.

- It is made of one of the new synthetics.

- By the way, doctor, there's a rumor going around that gunfire has no effect on the beast. Why?

- This beast has no heart, and it has no lungs. It has, instead, a network of small tubes throughout its entire body. Hence, firearms effect no great damage.

- The dynamometer's coming on the platform now, doctor.

- Please, right over here.

- Look out for those electric cables! Look out!

- Misericordia!

- Off the platform! Everybody back!

[...]