Carnivores | Herbivores | Human beings | |
Teeth | Long canines to tear the flesh | Flat molars to grind the plant food | Flat molars, to grind nuts and vegetables |
Jaws | Open wide,to capture prey,but don't move sideways to grind plants | Can't open wide enough, but can move from side to side ,to grind plants | Can't open wide enough, but move from side to side, to grind nets, vegetables |
Claws | Long, sharp | No claws | No claws |
Bowel Walls | Smooth, to let food move along quickly | Full of pouches. Meat could get stuck & putrefy | Full of pouches. Meat could get stuck & putrefy |
Intestines | Very short,meat can pass through quickly | Very long, meat could putrefy | Very long, meat could putrefy |
Stomach | Highly acidic, digest meat easily | Very alkaline, digest carbohydrates easily | Very alkaline, digest carbohydrates easily |
Instincts | When they see their prey bleeding they pounce on it | When they see small animals, they don't yearn to kill them | When humans see a bleeding animal, they get repulsed |