Changes

==Description==

==Description==

Hippopotamuses may weigh up to 7000 pounds and reach 5 feet in height. They live in schools<ref>http://www.hipposchool.com/</ref> and submerge themselves in rivers to protect themselves from the sun, coming up for air every 5 [[minutes]] or so, although they are able to remain submerged for up to thirty minutes.   

Hippopotamuses may weigh up to 7000 pounds and reach 5 feet in height. They live in schools<ref>http://www.hipposchool.com/</ref> and submerge themselves in rivers to protect themselves from the sun, coming up for air every 5 [[minutes]] or so, although they can remain submerged for up to 30 minutes.   

===Diet===

===Diet===

===Reproduction===

===Reproduction===

Hippos are born underwater and have to swim to the surface to breathe. They are also able to suckle underwater.

Hippos are born underwater and have to swim to the surface to breathe. They can also suckle underwater.

===Behavior===

===Behavior===

While hippos may look comical and docile, they're in fact territorial and aggressive animals, known to kill more people in Africa than mammals like lions and buffalo. Males will fight each other over females and any source of water, using their front teeth to stab and inflict wounds. They share space with crocodiles, which will not attack a fully-grown hippo but may go after a calf.

While hippos may look comical and docile, they're in fact territorial and aggressive animals, known to kill more people in Africa than mammals like lions and buffalo. Males will fight each other over females and any source of water, using their front teeth to stab and inflict wounds; the males also mark their territory by scattering dung with their tails. They share space with crocodiles, which will not attack a fully-grown hippo but may go after a calf.

== References ==

== References ==