It does not matter how old they are the just have to be a certain lengths females have to be 360 cm and males have to be 420 cm.
The male narwhal reaches sexual maturity at eight to nine years old, and the female narwhal reaches that stage of its life at four to seven years old. Based on the data available the female narwhal is able to give to one calf once every three years. The narwhal gives birth after a 15-month gestation period. The breeding time for a narwhal whale is in the spring, and it usually takes place in mid-April, with the calf being born in the July of the following year. The narwhal tusk is thought to play a strong role in the mating activity of the whale. Narwhals have been seen with their tusks crossed. And the tusks have also been seen used as weapons when males battle over a female for the right to mate. Additionally the tusk is known to experience a growth-spurt at sexual maturity in males; this has been interpreted as suggesting that there is a possible breeding function tied into the narwhal tusk.
Narwhal
They can mate from 5 weeks old.
Bantam roosters can start mating as early as 4-5 months old, but it is recommended to wait until they are at least 6-8 months old to ensure they are fully mature physically and mentally. Early mating may affect their growth and development negatively.
Newt. Narwhal
at 16 the narwhal packs its sack and goes for a swim to buy the nearest iceberg..
Nautilus, narwhal, nymph
no a spider monkey can only live up to 24 years they start mating at 4-5 years old
Cats typically start mating at around 6 to 9 months of age.
The Narwhal has a curve in its mouth making it appear to smile all the time. The Narwhal has a large tusk that made reminded sailors of the mystical Unicorns.
Female Koalas are sexually mature and able to breed at around 2-3 years old, whilst males at 3-5 years old.
It starts when they are in love