Around this time of the year Hector’s dolphins give birth. There are quite a number of little calves around at the moment, one of which is jet black. Crew on board the Canterbury Cat in Lyttelton have named the new born Obama! Calves are often quite dark when they are first born but quickly grow and lighten into the distinct three colours of adult Hectors.
Hector’s dolphins mature usually have one calf every two to three years. Hector’s dolphins mate in late spring (New Zealand spring = September/October/November) and calves are born about a year later. The calves are 50-60cm at birth and stay close to their mothers who provide them with milk and protection until they are old enough to fend for themselves, usually at about one year old.