India, Sept. 29 -- Pregnancy periods vary dramatically across the animal kingdom. While some animals give birth within just a few weeks, others carry their young for several months or even more than a year. But what animal has a pregnancy lasting around 456 days?

The answer will surprise you. These large marine mammals have one of the longer reproductive cycles among marine mammals, with delayed implantation playing an important role in their pregnancy.

Which Animal Gives Birth After 456 Days?

The animal associated with a 456-day pregnancy period is the walrus.

Walruses are large marine mammals recognised for their prominent tusks, whiskers and thick bodies. They live mainly in Arctic and sub-Arctic regions and spend much of their tim...