A vertebrate as it has a backbone.
A Hippo is a Vertebrate.
no! it's a mammal
vertabrate
It is vertebrate Chordate.
invertebrate - has exoskeleton
An invertebrate.
actually a hippo is heavier
a hippo
It is an invertebrate 
no
The octopus is an invertebrate... It has no skeleton.
A bullfrog is not an invertebrate; it has a spine.
seriously? wow....... did you pass 4th grade? invertebrate
a crazy hippo
how do hippo's adapt