Apply a coat of primer to the wood surfaces with a paint brush, and allow it to dry overnight. Apply oil-base or latex paint with a paint brush. Do not paint the glass or silicone. Let the paint dry thoroughly. Finish with a coat of polyurethane, varnish or lacquer. Let it dry completely.
The size of the prey depends on mostly the size of the crocodile. Young hatchlings generally feed on smaller prey, preferring small fish, frogs, insects and small aquatic invertebrates before taking on larger fish, amphibians and small reptiles.
Tooth type. Again, due to their usual prey types, crocs and sharks have very different types of teeth. A crocodile's prey is typically not only larger than a shark's but also have much stronger bones and skins. A croc's teeth therefore not only needs to be able to tear flesh off the wildebeest through death spin, but also needs to be strong enough to crush the thick leg bones of these mammals.