This is the 3286th most frequent Turkish word.
hayvanları
"Animals" (plural form).
Here, 'hayvanları' is used in the accusative plural form, indicating the object of the verb 'korumak' (to protect).
Hayvanları korumak hepimizin görevidir.
Protecting animals is everyone's duty.
In this sentence, 'hayvanları' is again in the accusative plural form, serving as the direct object for the verb 'görebilirsiniz' (you can see).
Ormanda çeşitli hayvanları görebilirsiniz.
You can see various animals in the forest.
Here, 'hayvanları' is used as the object in the plural accusative form for the verb 'seven' (love).