"A sűrű erdők is csendesek, az állatok nem üvöltenek."

Translation: The dense forests are silent too, the animals do not roar.

[tedjeavons]

humans shout. animals never shout

[_paranoia_]

"Üvölt" is mistranslated throughout. If I understand it correctly, it is "to make a loud noise, like or as an animal". "Roar" or "howl" are pretty good translations. "Scream" is somewhat better than "shout", but still something that mainly humans do.

[_paranoia_]

Also dense forests are quiet, but not silent.

[KVis1]

The entire English construction of this sentence is poor and makes little sense. It should say something like "Dense forests are also quiet, animals do not howl".

[_paranoia_]

Since it's the specific animals in the forest that are being referred to, I think the definite article should be included on animals.

[CliveWilto]

.... , az állatok nem üvöltenek should be , the animals do not roar,
or better,
the animals do not make a sound

[EvaMitchel13]

the thick forests are also quiet, the animals are not roaring > my answer has the same meaning