Is progress real?

[antisocialmunky]

Cold/Warm blooded is a little outdated. Great White sharks are one of many animals that shares traits of both. Really the only difference is one generates it own heat, the other relys on external heat. Great Whites use muscle generated heat to keep its body temperature above the surrounding water's.

Same with dinosaurs. The only ones that are usually considered warm blooded are therapods - evidence isn't particularly supportive of either bloodedness for most dinosaurs.