a lot
Yes - very much so. Kangaroos are grazing animals and they need strong teeth for chewing the grass they eat. The teeth of the kangaroo are continuously being worn down by the tough grasses they eat. Instead of continuously growing, once a kangaroo's front teeth are worn down completely, they fall out, and the back teeth move forwards to take the place of the worn front teeth. Kangaroos have four such pairs of chewing teeth. Monkeys are not grazing animals, and they do not feed on coarse vegetation, so their teeth are sharper and narrower than kangaroos' teeth.
The alligator has a more rounded snout, and few if any teeth protrude when the mouth is closed. Crocodiles are usually the more aggressive species.
There isn't much of a color variation between alligators and crocodiles. The biggest difference between the two animals is the shape of their jaws and teeth placement.
Yes, both kangaroos and salamanders have teeth.
teeth
Actually, each time they eat, some of its teeth break or fall out.
Crocodiles have between 60 to 70 teeth used to tear flesh!
It is unknown of the type of parasites that are found on the teeth. The parasites could be from food that has been rotting between the teeth. Birds that are called a plover.
They don't.
crocodiles have 64 teeth twice as many as we have
tiger teeth are sharp and elephant teeth are soft
Alligator's have wider jaws/noses then Crocodiles and the Alligator's upper jaw overlaps the lower so on an Alligator you can't see the lower teeth when their mouths are shut, the crocodile you can see all the teeth when the mouth is shutA good illustration: http://crocodilian.com/cnhc/cbd-faq-q1.htm