public Frog(string name, byte age, Animal.Gender sex) : base(name, age, sex) { }
public Cat(string name, int age, Animal.Gender sex) : base(name, age, sex) { }
public Frog(string name, byte age, Animal.Gender sex) : base(name, age, sex) { }
public Cat(string name, int age, Animal.Gender sex) : base(name, age, sex) { }