The Strap-toothed whale is one of the mysterious beaked whales. The male is easily identified by two extraordinary teeth growing from the lower jaw, which then curls upwards and backwards over the top of its upper jaw. In some old animals, the teeth can grow to a length of 30cm (12in) and sometimes even meet in the middle. It’s the most commonly reported beaked whale in the southern hemisphere, known from about 150 strandings and probable sightings.
The Boto is the largest of the river dolphins. The body colour is highly variable with age, temperature, water clarity and location; from pink to bluish grey and off-white. The Boto population is believed to be declining.
The Beluga whale is one of the most vocal of the toothed whales, and is known as the “canary of the sea”. It is well adapted to live close to shore and can manoeuvre in very shallow water. The beluga spends much of its time at the surface and can be found in seasonally ice-covered waters of the arctic and subarctic.