About Xxx Xxxxx Expertise I have a strong working knowledge in the realm of prehistoric vertebrates, especially dinosaurs. And, if I don`t know the information immediately, I have many paleo-resources at my disposal and will get an answer for you!
Expert: Xxx Xxxxx Date: 10/22/2003 Subject: Extra crests---relating to teeth
Question Sorry, but I have another question:
1. What "extra crests" as in when the "extra crests become permanent in the Merychippus"?
Sorry again..I hope this isn't too much to ask..THANK YOU AGAIN!
Answer Hi Pearl!
Hmmm... I'm not sure, but I think it's talking about Merychippus having more crests on its teeth that its predecessor. The crests are the raised surfaces on the chewing side of a tooth. Different species of animals (especially mammals) can be identified by the patterns on their tooth surfaces.
