Is it OK to say? Some of the animals have become Extinguished.
The word that you probably in mind is extinct, not extinguished. When something becomes extinct, it ceases to exist. You do not find it anywhere on the planet. Any living organism can become extinct. Dinosaurs, for example, have become extinct.
• There are reasons to believe that the tigers will soon become extinct.
• Some of the animals in the rain forest are on the verge of extinction.
The word extinguish, on the other hand, is usually used along with the word fire. When you extinguish a fire, you put it out.
• The firemen battled for three hours before they extinguished the fire.
COURTESY : The Hindu (The National News-Paper) - India