Archie the Galah is the latest addition to the Chez Reynella family, joining Blizzard the bearded dragon (below).
SmallestOne had a birthday, he is a prime number years old. All the boys are now prime numbers old. The sum of their ages is also a prime number, the sum of the first and second digits of this prime number subtracted from MiddleOnes age, gives Smallest ones age. The sum of the digits of the square of Smallest ones age is OldestOne's age.