dinosaurs --- inferences unlimited

posture: 2 legs or 4 ?
legs: 'under' or 'out' ( crocodile ) ?
tail: dragging / up in air ?
speed: slow or fast ?
energy: warm / cold blooded ?
migrate: herds / solitary ?

pedagogy:
pre-operational kids love dinosaurs. They don't understand time or distance or animal diversity -- but they "study" dinosaurs. Hmm.
stress the PROCESSES by which we have learned about dinosaurs:

observing + measuring + inferring + interpreting data + classifying + . . .

dinosaur-ologists - ( vertebrate paleontologist )
- stephen j. gould - harvard ( generalist )
- robert bakker - colorado ( warm-blooded concept )
- jack horner - montana ( egg embryos )