LINQ equivalent for the code?

Question

I am absolute n00b at LINQ.

Can code for GetAnimals() be written in LINQ?

class Farm
{
    ObservableCollection<Animal> allAnimals = new ObservableCollection<Animal>();

    public IEnumerable<T> GetAnimals<T>() where T: Animal
    {
        foreach (var a in allAnimals)
        {
            if (a.GetType() == typeof(T))
            {
                yield return (T)a;
            }
        }
    }
}

Answer 1

There's already an extension method for this: OfType

Answer 2

You want Enumerable.OfType:

public IEnumerable<T> GetAnimals<T>() where T: Animal
{
    return allAnimals.OfType<T>();
}