The Beaked whales are very hard to see, as they hold the record for length of time holding breath, with some having approached the 2 hour period.
As such, this family of whales are generally only seen occasionally. Assuming 10 minutes at the surface after each dive, you are talking about 2 hours every 24, and they also have very low profiles in the water.
As a result, dead animals washing up on shore from these species give a rare incite into this rarely seen family.
In this instance, one has washed ashore in New Zealand. The last sighting was in 2012, when a mother and calf washed ashore, but this was the first sighting for 150 years. It should be noted, that this species was described from a whale jaw-bone, as one would think, it is hard to describe something that is seen so rarely.
This animal has never been sighted alive. We have no idea if it is on the edge of extinction, or whether there are many of them, swimming deep in the worlds oceans. Below is a news article on this species, where you can see a video of the removal and an image or two.
Found in the West Indies, northern South America (including the Galápagos Islands) and the Yucatan Peninsula. It was considered cospecifc with the greater flamingo, but they are now recognized as separate species (it is also closely related to the Chilean flamingo). 
of South America, it is in the same genus as the James Flamingo. Indeed, the Chilean Andea and James flamingo often share nesting sites and are relatively closely related.
the American and greater flamingo, it is listed as near threatened in the wild with a wild population of about 200,000. Population declines are due to habitat loss and degradation, harvesting and 
flamingo has the greatest of ranges of any species (as you can see from the map. While it is found down the East coast of Africa, it is also found on the northwest coast and the northern coast. It is also present in the middle east, and throughout much of Sothern Europe. Its range also extends into 
only endemic pinniped found in 
the west coast of north America. On this map, the navy blue marks the breeding rance, while the light blue shows the total range that they can be found in. It should be noted, that previously the Japanese and Galapagos sealion were both considered subspecies of the Californian species, but no longer. They can stay healthy, for a time, in fresh water, and have been seen living for a while in Bonneville dam – 150 miles inland.
on all of the Galapagos Islands, as well as (in smaller numbers) on Isla de la Plata, which is just 40km from Puerto López a village in 
known as the Hooker sealion) is native to south island, though before 1500 it is thought that it was also found on north island. They tend to breed on Subarctic islands of Auckland and Campbell (99% of the pups are born in these islands). In 1993, sealions started breeding on South Island again for the first time in 150 years.
