Oil-Rich Fish. Oil-rich fish are so called because the oils are distributed throughout the flesh of the fish. Mackerel, herring, salmon and trout are common examples. Occasionally you will find fish classified in a different way: Demersal and Pelagic Fish.
For other uses, see Springbok (disambiguation) . The springbok (Antidorcas marsupialis) is a medium-sized brown and white antelope-gazelle of southwestern Africa. It is extremely fast and can reach speeds of 88 km/h (55 mph) and can leap 4 m (13 feet) through the air.The common name springbok comes from the Afrikaans and Dutch words spring = jump and bok = male antelope or goat.pringbok footprints are narrow and sharp, and are 5.5 cm (2.2 in) long. springbok are distinguished from gazelles in that they only have two premolar teeth in each side of each jaw, instead of three, and therefore a total of twenty eight teeth, rather than thirty.
That being said, I think the hippopotamus is slightly faster, and estimated top speeds are 30 mph, which is fast enough to outrun the fastest human being. However, a hippo is able to maintain this high speed for only a few hundred yards, as it tires up quickly. On the other hand, the rhinoceros is fast too. Regardless of their massive bulk (males can be larger than 4,000 lb) they will easily achieve speeds of 20 mph or more, but they can do so only over a short distance, because just like the hippo, they get tired and need to rest. Some rhinos can even run at 30 mph.