It starts whenever you are ready for it to start.
Birds typically start to sing in the springtime, as it is their breeding season.
Toddlers typically start counting around the age of 2 or 3.
Cats typically start breeding around 6 to 9 months of age.
Cats typically start mating at around 6 to 9 months of age.
Babies typically start counting around 18 to 24 months of age.
Fires typically start at temperatures around 300 degrees Celsius (572 degrees Fahrenheit).
Cats typically start shedding their fur at around 6 months of age.
The codon typically used as the start codon in protein synthesis is AUG.
Babies typically start producing tears around 1 to 3 months of age.
Babies typically start to count to 3 around 18 to 24 months of age.
Toddlers typically start walking backwards around 12 to 15 months of age.
Children typically start 1st grade around the age of 6 or 7.