Bonjour,
Réponse :
They are sharp-toothed animals.
They are long-tailed animals.
They are long-necked animals.
They are big-eared animals
They are short-legged animals
Adjectif composé :
adjectif - nom-ed
Attention puisque ces noms ont position d’adjectif, on met le singulier:
ex : Alligatorts have got sharp teeth( pluriel car c'est un nom, il s'accorde). They are sharp-toothed ( singulier car adjectif )animals.