| --------------- | ----------- | ------------ |
| Habitat | Terrestrial | Aquatic |
| Size | Variable (small to large) | Typically small (1.5 to 35 cm) |
| Diet | Herbivores (graze on plants) | Carnivores (feed on small crustaceans, zooplankton, and fish larvae) |
| Body structure | Quadrupedal (four legs) | Unique body shape with an elongated snout and intricate tail
| Mane and Tail | Yes | No |
| Hoofs | Yes | No |
| Reproduction | Give birth to live young (foals) | Lay eggs |
| Social Structure | Live in herds | Live in pairs or small groups |
| Speed | Fast runners, speeds up to 55 km/h | Relatively slow swimmers |
| Purpose | Domesticated for riding, transportation, and recreation | Ornamental fish, also have ecological significance in marine ecosystems |