Narwhals - Pictures

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Narwhals - Reproduction

Narwhals are seasonal breeders. The breeding season is in March through May. The gestation period lasts for about 15.3 months. The calves are born in July-August. It is believed that Narwhal Whales concept the next calf no sooner than in three years after the previous conception. Narwhals copulate in water in vertical position. They come to each other with their bellies close. Usually, a female Narwhal Whale gives birth to one calf. However, twins can also be born. The tail of the calf appears first during the delivery.

Newborn narwhals weigh about 80 kg and have about 25 mm of blubber. By the age of 4-7 years, male Narwhals weigh about 1600 kg and are 4.7 m at length. Adult females weigh about 900 kg and are as long as 4m. By this age, Narwhals reach sexual maturity.

Narwhals - Social Behavior

The Narwhal Whale is a social animal. It is known to live in small groups that are about 6-12 individuals. Sometimes, males gather in a pod of bachelors. During the migratory season, Narwhals tend to join other groups, which results in hundreds and thousands of species going in one direction.

Narwhals - Communication

Narwhals make use of pulsed calls. They are also known to whistle, yet it is rare. It is believed that individuals may have specific calls. They produce these sounds to communicate with their group members. The sounds can be pulse and tonal. Pulse sounds can be as high as 20-40 kHz. Tonal sounds made by Narwhals tend to be about 0.3-18 kHz.

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