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This is a Non-Fiction book based on an article I read in "New Scientist 

Magazine" named "Re-wilding: Bring in the Big Beasts to fix Ecosystems".

  Environmentalists, conservationists, and 

scientists think that many ecosystems can be 

fixed by unleashing beasts like wolves. You 

might be thinking why, right? Well the answer 

is very simple. By unleashing beasts in 

ecosystems, the area where the beasts are, 

are balanced. This means that in the area 

there is a balanced population of each specie. 

If an area doesn't have top predators, then 

populations of deers or rabbits can increase 

to a point when it gets out of control.

This has been confirmed in the past. In 1995, 

70 years after wolves were wiped out of the 

Yellowstone Park, wolves were reintroduced. 

During the absence of the wolves, deer and elk 

population went out of control. Deer started to 

invade nearby towns and cities because they 

couldn't fit in the park. Elk ate all of the trees 

and beavers couldn't find enough lumber to 

build their dams. This changed the flow of 

rivers dramatically. Once the wolves were 

reintroduced, deer and elk population 

decreased and the ecosystem started to 

recover. 

Examples like this clearly show that doing this can 

really shape entire ecosystems. Wolves or other top 

predators like tigers and lions can help a lot.

However, some people think otherwise. Some people 

think that introducing beasts into areas can destroy 

ecosystems.

As in today, conservationists have a dilemma. They are 

debating in which areas can beasts help and in which 

other, can´t. Also, some conservationists say that only 

male predators should be added to areas so the 

predator population doesn't get out of control. Charles 

Clover, a conservationist, and his surrogate, Edwin 

Tern, agree that adding top predators will help some 

ecosystems to recover, mainly in North America.

In my opinion, I think that beasts like wolves can 

help a lot to control populations of deers, elks, 

rabbits, etc, and it is also something feasible. 

However, they might also kill other animals that 

don´t harm the environment and wipe them out of 

the ecosystem.

So, conservationists have to be really careful in 

where and in what quantity top predators are 

introduced. I envision that in a couple of years, if top 

predators are introduced to ecosystems that have 

overpopulated species, will recover.

This book was written with arguments and facts in the article in "New Scientist Magazine", 

"Rewilding: Bring in the beasts to fix Ecosystems".

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