If the cassowary became extinct, so, too, would certain plant species. Cassowaries are considered a keystone species. They play an important role in the ecology of the rainforest and bushland areas where they live, as they are vital in dispersing seeds in their native forests.
They are frugivores which feed on the fruit of up to 238 different species of plants. Because they are able to eat larger fruits, they can therefore can disperse large rainforest fruits after the seeds have passed through their digestive system, which is gentle enough to allow the seeds to remain viable. The cassowary has a wide range, so is also the only long distance means for dispersing large seeded fruits. The seeds are excreted into a pile of the cassowary's own dung, meaning the seeds have their own ready-made pile of fertiliser. The smell of the dung even helps to deter seed-eating predators such as the white-tailed rat. Of the hundreds of fruit-bearing species on which the cassowary feeds, between 70 and 100 of them appear to rely completely on the cassowary for dispersal.
I don't think anyone can fully understand what it would mean for the Kakapo to disappear. For me, it would mean heartbreak. It would leave a huge hole in the world that most people wouldn't even notice.
It would be extinct. As in no longer in existence. It would not be here anymore.
other animals that relied on it would die and come extinct
we would all be in caves or extinct
If they went extinct the whole food chain would be out of balance.
They become extinct.
they will be extinct
It would effect the food chain and other marine life would become extinct
bullfighters would be out of a job
then you would not even be here
Then there would be no human nature.
Yes. The kakapo could very easily become extinct. This bird, the world's only flightless parrot, is critically endangered, with a population that has fluctuated between 110 and 130 for the past decade or so. Measures are being taken to ensure the kakapo's survival; primarily, the removal of adult birds to offshore islands where they will be safe from introduced feral cats and the kiore, or Polynesian rat.