The study also shows just how bad certain animals have it.

And they would become immune after a while with this one certain animal.

It was a certain animal I saw once in a cage.

If certain higher animals are that clever, why do they so often get lost?

Certain animals send out signals to the others that they will soon go to sleep.

The media often present unrealistic images of what certain animals are like.

Certain animals are more sacred to some individuals, families and tribes.

Certain other animals also use surface waves to find prey.

Certain animals devour their young; television doesn't care how old you are.

Despite this, the raising of certain animals can be more environmentally sound than others.