Whales are polygamous mammals, with females giving birth to live young and nursing them for several months. During breeding season, the male, or bull whale, copulates underwater with the female, or cow, in a complex mating ritual that varies widely from species to species. Mating entails long migrations to oceanic breeding grounds, vocalizations or songs and, sometimes, large groups of male whales, such as humpbacks, competing for females in violent displays of dominance. As large mammals with a gestation period of a year or more and another 5—6 months spent nursing newborn calves, whales generally breed once every 2 years.
The inspiration for the white whale of Moby Dick, sperm whales have the largest heads, biggest brains, and make the loudest sound of any animal on Earth. Region: Arctic. Destinations: Lofoten, Greenland, Svalbard, Iceland. Sperm whales usually eat a little over kg almost 2, pounds of food per day. To find their prey preferably giant squid , they dive somewhere between and 1, metres and 4, feet , though they can go as deep as 2 km 1. An average dive lasts about an hour.
All rights reserved. Sperm whales' heads are filled with a mysterious substance called spermaceti. Scientists have yet to understand its function, but believe it may help the animal regulate its buoyancy. They have the largest brain of any creature known to have lived on Earth.
Mating behaviour is a characteristic that occurs in the DNA of almost every living creature. Whales are no exception. They follow a specific set of actions and behaviour, which are fascinating for us to observe and document. However, because there are so many different whale species, it is not possible to define one or two set behaviours across the board.