" Hippopotamus " means " river horse " in Greek. |
Male hippos can be up to 15 feet long, 5 feet high, and 8,000 pounds in weight, making them one of the largest terrestrial mammals. Only elephants and some white rhinos are larger. |
At birth a hippopotamus weighs 30 - 60 kg, and it takes 4 to 5 years to reach maturity and a weight of 3600 kg. |
Hippo lips are about 2 feet wide. |
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Hippos can turn each ear in a different direction at the same time. |
A bull hippos' bellow has been measured at 115 decibels. |
Hippos cannot float because their heavy muscles weigh them down and cause them to sink. This does not present a problem, since they can either paddle to stay afloat or simply walk along the river bottom. |
Feeding always occurs on land. However, courtship, birth and nursing takes place underwater. |
Adult hippos can stay underwater for five to six minutes. However, baby hippos can only stay underwater for twenty seconds. |
Few animals can open their mouths as wide as hippos can. They use this ability to scare away other animals. |
Around the turn of the eighteenth century, hippo tusks were used to make artificial teeth. |

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When hippos fight each other, they use their teeth, toss water at each other, accost each other with a variety of sounds and swing their massive heads together. |
Although all hippos are herbivores and would rather run away than fight, several hundred people a year do not survive a close hippo encounters. In addition, hippos are more deadly than many feared predators, including lions. |
An angry hippo can run much faster than a human; they have been clocked in shorting running dashes at 30 mph. |
Mother hippos often form nurseries for up to 40 young hippos on sandy beaches near the water. When traveling, females keep the youngsters in a single-file line behind them. |
Mother hippos have been known to kill lions and bite crocodiles in half. |

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It is speculated that gases produced during digestion from fermentation are passed out through a hippo�s nostrils. |